WS
William Spencer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Spencer across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 9-person household.
Age 54
b. ~1886
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Spencer |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | acid maker |
| Industry | acid plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1452 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Acid Maker |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1886 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Margaret Spencer | Daughter | — | 22 | ~1918 |
| William Spencer | Head | — | 54 | ~1886 |
| George Spencer | Son | — | 26 | ~1914 |
| J Spencer | Son | — | 29 | ~1911 |
| Charles Spencer | Son | — | 10 | ~1930 |
| Bernard Spencer | Son | — | 12 | ~1928 |
| Charles Spencer | Son | — | 24 | ~1916 |
| Thomas Spencer | Son | — | 19 | ~1921 |
| Elizabeth Spencer | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Baltimore, Maryland
Head, age 44
Baltimore, Maryland · implied b. ~1886 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | William L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Roadmaster |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Baltimore-City-County, Maryland
Head, age 54
Baltimore-City-County, Maryland · implied b. ~1886 — 9 household members
| Surname | Spencer |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | acid maker |
| Industry | acid plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1452 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| 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 William Spencer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Spencer
Head · 1940 · age 54 · b. ~1886 · Maryland
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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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01536-00557)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Edwin Matthews | 35 | Lodger | Marine Inspector | Pennsylvania |
| 42 | Edwin Leidner | 55 | Lodger | Radio Repairman | New Jersey |
| 43 | Aloysius R. Connors | 44 | Lodger | — | — |
| 44 | Paul W. Lambert | 44 | Head | Electrical Foreman | Maryland |
| 45 | Mullian I. Lambert | 45 | Wife | — | Virginia |
| 46 | A. Pauline Lambert | 21 | Daughter | Private Secretary | Maryland |
| 47 | Lambert | None | — | — | — |
| 48 | Warren C. Browne | 25 | Head | — | Missouri |
| 49 | Warren C. Jr. Browne | 36 | Son | Policeman | Maryland |
| 50 | Inez A. Browne | 27 | Daughter | Bookkeeper | Maryland |
| 51 | Edna R. Browne | 24 | Daughter | Clerk | Maryland |
| 52 | Edna Burnside | 43 | Daughter | Maid | Maryland |
| 53 | Carl E. Burnside | 17 | Grandson | Usher | Maryland |
| 54 | Louis W. Duvall | 40 | Head | Foreman | Maryland |
| 55 | Helen S. Duvall | 31 | Wife | — | Maryland |
| 56 | Barbara L. Duvall | 8 | Daughter | — | Maryland |
| 57 | Louise S. Duvall | 5 | Daughter | — | Maryland |
| 58 | Frederick Schneider | 34 | Father-in-law | Postman | Maryland |
| 59 | — | None | — | — | — |
| 60 | William J. Spencer THIS PERSON | 54 | Head | Acid Maker | Pennsylvania |
| 61 | Elizabeth K. Spencer | 47 | Wife | — | Maryland |
| 62 | J. Joseph Spencer | 29 | Son | Truck Driver | Maryland |
| 63 | George E. Spencer | 26 | Son | Truck Driver | Maryland |
| 64 | Charles J. Spencer | 24 | Son | Insurance Collector | Maryland |
| 65 | Margaret G. Spencer | 22 | Daughter | Counter Girl | Maryland |
| 66 | Thomas P. Spencer | 19 | Son | 0 | Maryland |
| 67 | Bernard V. Spencer | 12 | Son | — | Maryland |
| 68 | Charles W. Spencer | 10 | Son | — | Maryland |
| 69 | Frank H. Gore | 46 | Head | Crane Operator | Maryland |
| 70 | Edith M. Gore | 32 | Wife | — | Maryland |
| 71 | C. Elizabeth Gore | 18 | Daughter | General Helper | Maryland |
| 72 | Lloyd L. Gore | 11 | Son | — | Maryland |
| 73 | Charles W. Bowers | 31 | Head | Machine Operator | Maryland |
| 74 | Dorothy K. Bowers | 25 | Wife | — | Maryland |
| 75 | Adele M. Bowers | 4 | Daughter | — | Maryland |
| 76 | John J. Blanchard | 47 | Head | Stationary Engineer | Maryland |
| 77 | Mary V. Blanchard | 45 | Wife | — | Maryland |
| 78 | Pearl K. Carmore | 24 | Step-daughter | 0 | Maryland |
| 79 | Walter Cytacki | 75 | Step-uncle | 0 | Poland |
| 80 | Samuel A. Longfellow | 71 | Head | Laborer | England |
Related Census Records
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)