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Harold Adams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lehigh-County, Pennsylvania
Our Model Tree links this Harold Adams across the 1910, 1920, 1930 and 1940 US Censuses in Lehigh-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1904), then head of a 7-person household.
Age 36
b. ~1904
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lehigh-County, Pennsylvania |
| Surname | Adams |
| Given Name | Harold J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | South Whitehall Township |
| 1935 Residence (County) | Lehigh |
| Additional Details | |
| Occupation | Assembler |
| Industry | Mack Truck |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1665 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Assembler |
| Township / Ward | South Whitehall Township |
| Est. Birth Year | ~1904 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Robert Adams | Son | — | 10 | ~1930 |
| Vera Adams | Daughter | — | 13 | ~1927 |
| Harold Adams | Son | — | 12 | ~1928 |
| Howard Adams | Son | — | 7 | ~1933 |
| Marvin Adams | Son | — | 6 | ~1934 |
| Harold Adams | Head | — | 36 | ~1904 |
| Aritha Adams | Spouse | — | 31 | ~1909 |
Census Appearances
1910
Lehigh, Pennsylvania
Other, age 5
Lehigh, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold P. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Lehigh, Pennsylvania
Other, age 15
Lehigh, Pennsylvania · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Sewer |
| Industry | Shirt Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lehigh, Pennsylvania
Head, age 26
Lehigh, Pennsylvania · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Mechanic |
| Industry | Motor Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 900 |
| Veteran | O |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lehigh-County, Pennsylvania
Head, age 36
Lehigh-County, Pennsylvania · implied b. ~1904 — 7 household members
| Surname | Adams |
| Given Name | Harold J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | South Whitehall Township |
| 1935 Residence (County) | Lehigh |
| Occupation | Assembler |
| Industry | Mack Truck |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1665 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Harold Adams across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Harold Adams
Head · 1940 · age 36 · b. ~1904 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lehigh-County, Pennsylvania
Open full size
1940 US Federal Census — Lehigh-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03547-00484)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katie S. Seibenguth | 51 | Wife | — | Pennsylvania |
| 2 | Grace N. Seibenguth | 18 | Daughter | Clerk | Pennsylvania |
| 3 | Gladys E. Seibenguth | 17 | Daughter | New Worker | Pennsylvania |
| 4 | Joyce M. Seibenguth | 16 | Daughter | — | Pennsylvania |
| 5 | Mordie W. Woolley | 45 | Head | Machinist | Pennsylvania |
| 6 | Anna M. Woolley | 43 | Wife | — | Pennsylvania |
| 7 | Marvin E. Woolley | 17 | Son | — | Pennsylvania |
| 8 | Kenneth W. Knerr | 28 | Head | — | Pennsylvania |
| 9 | Alice N. Knerr | 24 | Wife | — | Pennsylvania |
| 10 | Joan A. Knerr | 3 | Daughter | — | Pennsylvania |
| 11 | Arthur J. Weaver | 25 | Head | Laborer | Pennsylvania |
| 12 | Thelma M. Weaver | 24 | Wife | — | Pennsylvania |
| 13 | Margaret A. Weaver | 4 | Daughter | — | Pennsylvania |
| 14 | John P. Miller | 29 | Head | Asst Manager | Pennsylvania |
| 15 | Anna Miller | 24 | Wife | — | Pennsylvania |
| 16 | Raymond J. Miller | 3 | Son | — | Pennsylvania |
| 17 | Calvin H. Wetzel | 50 | Head | Laborer | Pennsylvania |
| 18 | Hattie S. Wetzel | 54 | Wife | — | Pennsylvania |
| 19 | Russell E. Wetzel | 27 | Son | Laborer | Pennsylvania |
| 20 | Charles A. Clauss | 46 | Head | Clerk | Pennsylvania |
| 21 | Jennie M. Clauss | 48 | Wife | — | Pennsylvania |
| 22 | Freeman J. Clauss | 23 | Son | Newspaper Man | Pennsylvania |
| 23 | Richard F. Clauss | 16 | Son | — | Pennsylvania |
| 24 | Russell G. Leonard | 42 | Head | Draftsman | Pennsylvania |
| 25 | Veronica C. Leonard | 42 | Wife | — | Pennsylvania |
| 26 | Mary G. Leonard | 14 | Daughter | — | Pennsylvania |
| 27 | John G. Leonard | 12 | Son | — | Pennsylvania |
| 28 | William J. Leonard | 9 | Son | — | Pennsylvania |
| 29 | Patricia M. Leonard | 7 | Daughter | — | Pennsylvania |
| 30 | Rose M. Leonard | 0 | Daughter | — | Pennsylvania |
| 31 | Harold J. Adams THIS PERSON | 36 | Head | Assembler | Pennsylvania |
| 32 | Aritha C. Adams | 31 | Wife | — | Pennsylvania |
| 33 | Vera M. Adams | 13 | Daughter | — | Pennsylvania |
| 34 | Harold J. Adams | 12 | Son | — | Pennsylvania |
| 35 | Robert R. Adams | 10 | Son | — | Pennsylvania |
| 36 | Howard J. Adams | 7 | Son | — | Pennsylvania |
| 37 | Marvin D. Adams | 6 | Son | — | Pennsylvania |
| 38 | George M. Hochlander | 69 | Head | — | Pennsylvania |
| 39 | Wilbur H. Schmeyer | 48 | Head | Carpenter | Pennsylvania |
| 40 | Elizabeth J. Schmeyer | 46 | Wife | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)