Herman Henry Heuckendorff was a contractor who did sidewalk work between 1910 and 1938. He teamed up with other people, and a number of stamps have multiple names.

His house is 252 NW Polk St.

H H HEUCKENDORF (Name cut short)

Lat/Long44.57200134547981,-123.26994626752855
Address546 Northwest 14th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORF (Name cut short)
CommentsNo date, first tile

HHH

Lat/Long44.57001847543124,-123.27199512599276
Address316 Northwest 15th Street Corvallis OR 97330 USA
InscriptionHHH

HHH JAN 26 1910

Lat/Long44.56812397088427,-123.2673637754631
Address227-299 Northwest 10th Street Corvallis OR 97330 USA
InscriptionHHH JAN 26 1910
CommentsVery poor contrast, small font

HEUCKENDORFF & HOGUE APRIL 20 1910

Lat/Long44.5697114,-123.26400000000001
Address763 Northwest Tyler Avenue Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HOGUE APRIL 20 1910
CommentsSmall font. On NE corner on West side of house.

HEUCKENDORFF & BROWN APRIL 28 1910

Lat/Long44.569705169041065,-123.26400670023247
Address515 Northwest 8th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & BROWN APRIL 28 1910
CommentsSmall font

H. H. HEUCKENDORFF. APRIL. 14 1919.

Lat/Long44.5692393,-123.26214910000002
Address653 Northwest Tyler Avenue Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. APRIL. 14 1919.
CommentsSmall font. Taylor house. Look for "HS" mark.

H H HEUCKENDORFF MARCH 27 1919

Lat/Long44.5710917924862,-123.26810976157475
Address515 Northwest 12th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MARCH 27 1919

H H HEUCKENDORFF JAN 7 1920 (Saved)

Lat/Long44.57312430466542,-123.26599106382372
Address1060 Northwest Fillmore Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JAN 7 1920 (Saved)

H H HEUCKENDORFF APR 17 1920

Lat/Long44.5694223,-123.2699193
Address321 Northwest 13th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APR 17 1920
CommentsSouth of #327, Rough tile, small font, name under grass

HEUCKENDORFF & ISAACK JUNE 5 1920

Lat/Long44.5731041,-123.27257379999999
Address620 Northwest 17th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & ISAACK JUNE 5 1920
CommentsHeavy moss cover. The date could easily be wrong.

H H H & WI JULY 17 1931

Lat/Long44.56999745333702,-123.26961938773157
Address403 Northwest 13th Street Corvallis OR 97330 USA
InscriptionH H H & WI JULY 17 1931

H. H. HEUCKENDORFF. APRIL 29 1921

Lat/Long44.57089188976868,-123.28461972800926
Address303 Northwest 30th Street Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. APRIL 29 1921
CommentsRoss has this on the 28th

H H HEUCKENDORFF APRIL 3 1922

Lat/Long44.5700556,-123.26748680000001
Address437 Northwest 11th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APRIL 3 1922

H. H. HEUCKENDORFF. MAY 18 1922

Lat/Long44.570086534099566,-123.28353804133702
Address211 Northwest 29th Street Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. MAY 18 1922

H H HEUCKENDORFF MAY 29 1922

Lat/Long44.567992333413656,-123.25888864947035
Address435 Northwest 3rd Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MAY 29 1922

H. H. HEUCKENDORFF. MAY 31 1922

Lat/Long44.56969645824882,-123.28125475330353
Address2638 Northwest Jackson Avenue Oregon State University Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. MAY 31 1922

H H HEUCKENDORFF JUNE 6 1922 (Split across two tiles)

Lat/Long44.570010560590305,-123.2717587543039
Address319 Northwest 15th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JUNE 6 1922 (Split across two tiles)

H H HEUCKENDORFF JUNE 13 1922

Lat/Long44.57109212046905,-123.27039832390786
Address444 Northwest 14th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JUNE 13 1922

H. H. HEUCKENDORFF. JULY 19 1922

Lat/Long44.562159571380604,-123.26579996826173
Address404 Southwest 6th Street Corvallis OR 97333 USA
InscriptionH. H. HEUCKENDORFF. JULY 19 1922
CommentsHayes House

H. H. HEUCKENDORFF. NOV. 14. 1922.

Lat/Long44.56900201662883,-123.28562594725612
Address101-107 Northwest 31st Street Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. NOV. 14. 1922.

H H HEUCKENDORFF NOV 18 1922 (Saved)

Lat/Long44.56967309773,-123.28559896445275
Address3062 Northwest Jackson Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF NOV 18 1922 (Saved)

HEUCKENDORFF & ISAACK NOV 30 1922

Lat/Long44.5712456,-123.2669224
Address1060 Northwest Polk Avenue Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & ISAACK NOV 30 1922
CommentsSmall font

H H HEUCKENDORFF MARCH 27 1923

Lat/Long44.56979138961481,-123.26875285234735
Address409 Northwest 12th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MARCH 27 1923

H H HEUCKENDORFF MARCH 29 1923

Lat/Long44.570854483040144,-123.28563998528477
Address303 Northwest 31st Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MARCH 29 1923

H. H. HEUCKENDORFF. APRIL 10 1923

Lat/Long44.5706718,-123.2858213
Address244 Northwest 31st Street Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. APRIL 10 1923

H H HEUCKENDORFF APRIL 19 1923

Lat/Long44.5680766666667,-123.268431666667
Address231 Northwest 11th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APRIL 19 1923

H. H. HEUCKENDORFF APRIL 26 1923 ('3' is backwards)

Lat/Long44.5705791,-123.27382580000001
Address334 Northwest 17th Street Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF APRIL 26 1923 ('3' is backwards)

H H HEUCKENDORFF APRIL 28 1923 (Saved)

Lat/Long44.56061953281785,-123.27589015542314
Address1600-1698 Southwest A Avenue Oregon State University Corvallis OR 97333 USA
InscriptionH H HEUCKENDORFF APRIL 28 1923 (Saved)

H H HEUCKENDORFF MAY 3 1923

Lat/Long44.57168584125755,-123.2837854459791
Address342 Northwest 29th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MAY 3 1923

H H HEUCKENDORFF APRIL 14 1923

Lat/Long44.569791033497005,-123.28473946015357
Address3001-3099 Northwest Jackson Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APRIL 14 1923
CommentsRoss has this on NE corner

H. H. HEUCKENDORFF. MAY 18 1923

Lat/Long44.56914094530641,-123.26710192394256
Address1000-1098 Northwest Harrison Boulevard Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF. MAY 18 1923

H H HEUCKENDORFF APRIL 25 1923

Lat/Long44.57083574825057,-123.27369615740491
Address334-398 Northwest 17th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APRIL 25 1923
CommentsRoss also has this as RP=85 with CORVALLIS CONCRETE CO. on the 26th. This is hard to read.

H H HEUCKENDORFF MARCH 27 1923

Lat/Long44.570036455815334,-123.26861613210961
Address409 Northwest 12th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MARCH 27 1923

H H HEUCKENDORFF JULY 18 1923

Lat/Long44.570841464566314,-123.28768181266503
Address3262 Northwest Van Buren Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JULY 18 1923

H H HEUCKENDORFF JULY 21 1923 (Saved)

Lat/Long44.57167026496862,-123.28766320734024
Address3256 Northwest Harrison Boulevard Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JULY 21 1923 (Saved)

H H HEUCKENDORFF JULY 23 1923

Lat/Long44.5708487874234,-123.28785892146114
Address310 Northwest 33rd Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JULY 23 1923

H. H. HEUCKENDORFF JULY 28 1923

Lat/Long44.5704502,-123.2856244
Address233 Northwest 31st Street Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF JULY 28 1923

H H HEUCKENDORFF AUG 3 1923

Lat/Long44.56977283875091,-123.27211934772208
Address312 Northwest 15th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF AUG 3 1923

H H HEUCKENDORFF AUG 6 1923 ('3' is backwards)

Lat/Long44.57035114058715,-123.27182447486878
Address342 Northwest 15th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF AUG 6 1923 ('3' is backwards)

H.H.HEUCKENDORFF AUG 14 1923

Lat/Long44.56011517786188,-123.26562765806865
Address530 Southwest 5th Street Corvallis OR 97333 USA
InscriptionH.H.HEUCKENDORFF AUG 14 1923

H H HEUCKENDORFF AUG 14 1928 (Broken tile)

Lat/Long44.560300644361334,-123.26642307605744
Address543 Southwest 6th Street Corvallis OR 97333 USA
InscriptionH H HEUCKENDORFF AUG 14 1928 (Broken tile)

H H HEUCKENDORFF AUG 18 1923

Lat/Long44.572591,-123.26836
Address1261-1299 Northwest Taylor Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF AUG 18 1923

H H HEUCKENDORFF OCT ?0 1923 (Badly damaged)

Lat/Long44.56792875286615,-123.27303584011361
Address132 Northwest 15th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF OCT ?0 1923 (Badly damaged)

H. H. HEUCKENDORFF MAY 1 1924.

Lat/Long44.5691382799425,-123.25743673495293
Address203 Northwest Polk Avenue Corvallis OR 97330 USA
InscriptionH. H. HEUCKENDORFF MAY 1 1924.

H H HEUCKENDORFF MAY 22 1924

Lat/Long44.569774511741485,-123.26873961144163
Address409 Northwest 12th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF MAY 22 1924

H H HEUCKENDORFF May 22 1924

Lat/Long44.56824904618239,-123.28464653009416
Address46-54 Northwest 30th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF May 22 1924

HEUCKENDORFF & HALLIAN AUGUST 22 1924 (Covered in ivy)

Lat/Long44.5678352,-123.26744520000001
Address227 Northwest 10th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HALLIAN AUGUST 22 1924 (Covered in ivy)

HEUCKENDORFF & HALLIAN AUGUST 22 1924

Lat/Long44.56810848252663,-123.2673701942797
Address227-299 Northwest 10th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HALLIAN AUGUST 22 1924

HEUCKENDORFF & HALLIAN AUGUST 27 1924 (Typo in Hallican)

Lat/Long44.56926977515554,-123.26812833131123
Address336 Northwest 11th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HALLIAN AUGUST 27 1924 (Typo in Hallican)

HEUCKENDORFF & HALLICAN SEPTEMBER 10 1924

Lat/Long44.56816399954858,-123.27291586954402
Address132 Northwest 15th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HALLICAN SEPTEMBER 10 1924

H H HEUCKENDORFF APRIL 18 1925

Lat/Long44.570428880828246,-123.2726083374691
Address335 Northwest 16th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APRIL 18 1925
CommentsNorth of driveway of #335

H H HEUCKENDORFF JUNE 16 1925 (Broken tile)

Lat/Long44.57039739539459,-123.27904498182296
Address2500-2508 Northwest Van Buren Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JUNE 16 1925 (Broken tile)

H H HEUCKENDORFF NOVEMBER 7 1925

Lat/Long44.57079857742894,-123.2846639550276
Address301 Northwest 30th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF NOVEMBER 7 1925

H H HEUCKENDORFF DEC 5 1925

Lat/Long44.570918,-123.278880
Address327 Northwest 25th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF DEC 5 1925
CommentsThird tile North of property line, one tile North on another sidewalk stamp.

H H HEUCKENDORFF SEP 9 1926

Lat/Long44.56801871723527,-123.2813947480135
Address40 Northwest 27th Street Oregon State University Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF SEP 9 1926
CommentsOn 27th at corner

H H HEUCKENDORFF OCT 4 1926

Lat/Long44.56112640136117,-123.272323333333
Address644-698 Southwest 13th Street Corvallis OR 97333 USA
InscriptionH H HEUCKENDORFF OCT 4 1926

HEUCKENDORFF & HOGUE. OCT. 28 1926.

Lat/Long44.5704884,-123.2858081
Address236 Northwest 31st Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HOGUE. OCT. 28 1926.

HEUCKENDORFF & HOGUE NOV 4 1926

Lat/Long44.57350477455599,-123.26604928902088
Address808 Northwest 11th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HOGUE NOV 4 1926
CommentsAt fence

HEUCKENDORFF & HOGUE MARCH 22 1927

Lat/Long44.5707969,-123.2650829
Address958 Northwest Polk Avenue Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & HOGUE MARCH 22 1927

HEUCKENDORFF & TAYLOR APRIL 8 1927

Lat/Long44.57069919670391,-123.28581856646821
Address244 Northwest 31st Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & TAYLOR APRIL 8 1927
Comments#236

HEUCKENDORFF & TAYLOR APRIL 14 1927

Lat/Long44.56808543423412,-123.26281723065377
Address600-698 Northwest Harrison Boulevard Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & TAYLOR APRIL 14 1927

HEUCKENDORFF & TAYLOR APRIL 28 1927

Lat/Long44.572511339416565,-123.27188398445799
Address1654 Northwest Polk Avenue Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & TAYLOR APRIL 28 1927

HEUCKENDORFF & TAYLOR MAY 13 1927

Lat/Long44.55905313092901,-123.26587352347656
Address485 Southwest B Avenue Corvallis OR 97333 USA
InscriptionHEUCKENDORFF & TAYLOR MAY 13 1927
CommentsThis may be Ross 130. He has a different (partial) address and a different spelling of HHH.

HEUCKENDORFF & ISAACK OCT 20 1927

Lat/Long44.57330839547488,-123.2711552478504
Address1500-1598 Northwest Taylor Avenue Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & ISAACK OCT 20 1927

HEUCKENDORFF & ISAACK OCT. 29 1927.

Lat/Long44.562980510605996,-123.26898130224896
Address404 Southwest 9th Street Corvallis OR 97333 USA
InscriptionHEUCKENDORFF & ISAACK OCT. 29 1927.

RFF & ISAACK 1927 (Left tile replaced. Right tile destroyed by miscommunication of project managers around 24 July 2016)

Lat/Long44.57377908996136,-123.28341183680533
Address602 Northwest 29th Street Corvallis OR 97330 USA
InscriptionRFF & ISAACK 1927 (Left tile replaced. Right tile destroyed by miscommunication of project managers around 24 July 2016)

H H HEUCKENDORFF APRIL 12 1928

Lat/Long44.5686359,-123.2597968
Address505 Northwest 4th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF APRIL 12 1928
CommentsSmall Font. Ross has April 22 1922

H H HEUCKENDORFF JULY 24 1923. (The '3' is backwards)

Lat/Long44.57166850802779,-123.28789398445798
Address340 Northwest 33rd Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JULY 24 1923. (The '3' is backwards)

H H HEUCKENDORFF JULY 30 1928

Lat/Long44.57194427424829,-123.26996768932628
Address546 Northwest 14th Street Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF JULY 30 1928
CommentsSplit across two tiles, 3 tiles back from crosswalk

H H HEUCKENDORFF NOV. 19 1928

Lat/Long44.57359092697439,-123.27232653355598
Address1700-1752 Northwest Taylor Avenue Corvallis OR 97330 USA
InscriptionH H HEUCKENDORFF NOV. 19 1928

HEUCKENDORFF & ISAACK NOV 18 1929

Lat/Long44.5718789,-123.26660600000001
Address629 Northwest 11th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & ISAACK NOV 18 1929

HEUCKENDORFF & ISAACK FEB 25 1934

Lat/Long44.5725332,-123.2675724
Address706 Northwest 12th Street Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & ISAACK FEB 25 1934
CommentsCovered with dirt right now. This should be on 12th St.

HEUCKENDORFF & ISAACK JUNE 10 1935

Lat/Long44.5725201,-123.26758589999999
Address1201-1261 Northwest Taylor Avenue Corvallis OR 97330 USA
InscriptionHEUCKENDORFF & ISAACK JUNE 10 1935
CommentsOn Taylor St.

HHH & WI 8-3-37

Lat/Long44.5709689,-123.2822646
Address2750-2758 Northwest Short Street Corvallis OR 97330 USA
InscriptionHHH & WI 8-3-37
Comments3rd tile from crosswalk, next to power pole

H.H.H. & WI AUGUST 11 1937

Lat/Long44.57167597626758,-123.2857363116741
Address345 Northwest 31st Street Corvallis OR 97330 USA
InscriptionH.H.H. & WI AUGUST 11 1937

H H H & WI MAY 23 1938 (Broken tile after inscription)

Lat/Long44.5702991463182,-123.27161628522587
Address335 Northwest 15th Street Corvallis OR 97330 USA
InscriptionH H H & WI MAY 23 1938 (Broken tile after inscription)
Comments3rd tile back from crossing sidewalk