TM
Thomas Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Thomas Mullen across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 10-person household.
Age 40
b. ~1900
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Mullen |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1560 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Clerk |
| Township / Ward | Oakland |
| Est. Birth Year | ~1900 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Ellen Mullen | Spouse | — | 39 | ~1901 |
| John Mullen | Son | — | 12 | ~1928 |
| Thomas Mullen | Head | — | 40 | ~1900 |
| Thomas Mullen | Son | — | 8 | ~1932 |
| Patsy Mullen | Daughter | — | 3 | ~1937 |
| Catherine Mullen | Daughter | — | 10 | ~1930 |
| Gertrude Mullen | Daughter | — | 6 | ~1934 |
| Mary Mullen | Daughter | — | 13 | ~1927 |
| Vincent Mullen | Son | — | ~1940 | |
| Betty Mullen | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Alameda, California
Head, age 30
Alameda, California · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1926 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 3000 |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Alameda-County, California
Head, age 40
Alameda-County, California · implied b. ~1900 — 10 household members
| Surname | Mullen |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | First papers filed |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1560 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Thomas Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Thomas Mullen
Head · 1940 · age 40 · b. ~1900 · California
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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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00438-00025)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Minnie Happer | 67 | Head | Practical Nurse | Ireland |
| 42 | John De Mello | 37 | Head | Clerk | Hawaii |
| 43 | Rose De Mello | 33 | Wife | — | California |
| 44 | Frank Costa | 46 | Head | Butcher | Honolulu |
| 45 | Rose Costa | 45 | Wife | — | California |
| 46 | Jack Mcculloch | 26 | Head | Machine - Meter Co. | Colorado |
| 47 | Antoinette Mcculloch | 23 | Wife | — | California |
| 48 | Fred Johnson | 48 | Head | Carpenter Contractor | Minnesota |
| 49 | Grace Johnson | 46 | Wife | Illustrator Wrapper | California |
| 50 | John Dorwalt | 21 | Step-son | Clerk Office | California |
| 51 | Louise Dorwalt | 19 | Step-daughter | Filing Clerk | California |
| 52 | Adolph Schnitzler | 35 | Head | Cashier | Germany |
| 53 | Grace Schnitzler | 32 | Wife | Soda Fountain | Wisconsin |
| 54 | Severin Schnitzler | 7 | Son | — | California |
| 55 | Fred Butz | 46 | Head | Machinist | Germany |
| 56 | Arwina Butz | 45 | Wife | — | Germany |
| 57 | Matthew Schmit | 45 | Head | Accountant | Illinois |
| 58 | Thomas Mullen THIS PERSON | 40 | Head | Clerk | Scotland |
| 59 | Ellen Mullen | 39 | Wife | — | Scotland |
| 60 | Mary Mullen | 13 | Daughter | — | California |
| 61 | John Mullen | 12 | Son | — | California |
| 62 | Catherine Mullen | 10 | Daughter | — | California |
| 63 | Thomas Mullen | 8 | Son | — | California |
| 64 | Gertrude Mullen | 6 | Daughter | — | California |
| 65 | Betty Mullen | 5 | Daughter | — | California |
| 66 | Patsy Mullen | 3 | Daughter | — | California |
| 67 | Vincent Mullen | 0 | Son | — | California |
| 68 | Charles Abbott | 62 | Head | Machinist | California |
| 69 | Della Abbott | 59 | Wife | — | California |
| 70 | Charles Abbott | 39 | Son | Machinist Parts | California |
| 71 | Arthur Abbott | 30 | Son | Electrician | California |
| 72 | Karl Dirlewanger | 57 | Head | Bottler | Germany |
| 73 | Pauline Dirlewanger | 56 | Wife | — | Illinois |
| 74 | Esther Smith | 42 | Head | Bookkeeper | Nebraska |
| 75 | Clara Smith | 75 | Mother | — | Illinois |
| 76 | Robert Smith | 22 | Son | — | Idaho |
| 77 | Willard Smith | 17 | Son | — | Idaho |
| 78 | Harry Fox | 55 | Lodger | Watchman | Idaho |
| 79 | Casper Setter | 50 | Head | Machinist | New York |
| 80 | Rose Setter | 38 | Wife | — | New York |
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)