MJ
May Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this May Johnson across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Female
Spouse
Born: Canada
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Johnson |
| Given Name | May D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Canada |
| 1935 Residence (City) | Sacramento |
| Naturalization Status | Alien |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
| Township / Ward | Walnut Park |
| Est. Birth Year | ~1909 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to May | Age | Birth yr |
|---|---|---|---|---|
| Eileen Johnson | Daughter | — | 9 | ~1931 |
| Kathleen Johnson | Daughter | — | 6 | ~1934 |
| Margaret Johnson | Daughter | — | 12 | ~1928 |
| John Johnson | Head | — | 38 | ~1902 |
| May Johnson | Spouse | — | 31 | ~1909 |
Census Appearances
1930
Los Angeles, …
Spouse, age 21
Los Angeles, California · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | May F |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Canada |
| Naturalization Status | Alien |
| Year of Immigration | 1922 |
| Age at First Marriage | 18 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
1940
Los-Angeles-County, California
Spouse, age 31
Los-Angeles-County, California · implied b. ~1909 — 5 household members
| Surname | Johnson |
| Given Name | May D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Canada |
| 1935 Residence (City) | Sacramento |
| Naturalization Status | Alien |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
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 May Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
May Johnson
Spouse · 1940 · age 31 · b. ~1909 · 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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00250-00449)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | David E. Hamilton | 32 | Head | Truck Driver | Missouri |
| 42 | Esther I. Hamilton | 31 | Wife | — | California |
| 43 | Rose M. Hamilton | 7 | Daughter | — | California |
| 44 | Robert C. Lentford | 28 | Head | Laborer | Missouri |
| 45 | Louise M. Lentford | 21 | Wife | — | California |
| 46 | Lynn W. Mcmanus | 31 | Head | Plant Man | Indiana |
| 47 | Fay P. Mcmanus | 24 | Wife | — | Pennsylvania |
| 48 | Ada L. Mcmanus | 58 | Mother | — | Indiana |
| 49 | Ernest A. Mccown | 25 | Head | Truck Driver | Missouri |
| 50 | Alice N. Mccown | 28 | Wife | — | California |
| 51 | John W. Tatton | 80 | Head | — | Indiana |
| 52 | Sarah E. Tatton | 68 | Wife | — | Indiana |
| 53 | Martin S. Petrusky | 39 | Head | Contractor | Colorado |
| 54 | Lucille M. Petrusky | 35 | Wife | — | Iowa |
| 55 | John C. Wells | 30 | Head | Repair Man | Pennsylvania |
| 56 | Mary D. Wells | 67 | Mother | — | Pennsylvania |
| 57 | Eldon B. Marvel | 41 | Head | Checker | Iowa |
| 58 | Elizabeth M. Marvel | 32 | Wife | — | New Zealand |
| 59 | Harry B. Leigh | 31 | Head | Welder | Missouri |
| 60 | Beula F. Leigh | 31 | Wife | — | Missouri |
| 61 | Milton E. Leigh | 7 | Son | — | Missouri |
| 62 | Beverly Jean Leigh | 1 | Daughter | — | California |
| 63 | Clarence J. Voigt | 63 | Head | Machinist | Missouri |
| 64 | Marcella L. Voigt | 60 | Wife | — | Missouri |
| 65 | Bessie N. Voigt | 29 | Daughter | Clerical | Missouri |
| 66 | Ira F. Voigt | 24 | Daughter | Secretary | Missouri |
| 67 | John Harold Johnson | 38 | Head | Traffic Manager | Pennsylvania |
| 68 | May D. Johnson THIS PERSON | 31 | Wife | — | Canada |
| 69 | Margaret W. Johnson | 12 | Daughter | — | California |
| 70 | Eileen L. Johnson | 9 | Daughter | — | California |
| 71 | Kathleen L. Johnson | 6 | Daughter | — | California |
| 72 | Mary F. Mcwilliams | 38 | Head | — | Montana |
| 73 | Clyde H. Gelbert | 32 | Brother | Pressman | North Carolina |
| 74 | Henry A. Mortenson | 46 | Head | Rubber Worker | Sweden |
| 75 | Esther M. Mortenson | 46 | Wife | — | Sweden |
| 76 | John W. Needham | 29 | Head | Salesman | Idaho |
| 77 | Beula M. Needham | 27 | Wife | — | Idaho |
| 78 | Harvey L. Eaten | 36 | Head | Laborer | Missouri |
| 79 | Lenora E. Eaten | 29 | Wife | Seamstress | Missouri |
| 80 | Virginia H. Eaten | 10 | Daughter | — | Missouri |
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)