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Mary Mccoy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Diego, California
Our Model Tree links this Mary Mccoy across the 1910, 1920, 1930 and 1940 US Censuses in San Diego, California (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 4-person household.
Age 43
b. ~1877
Female
Spouse
Born: New Hampshire
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Diego, California |
| Surname | McCoy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Louisiana |
| Additional Details | |
| Occupation | Stage Employee |
| Industry | Theatre |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Stage Employee |
| Township / Ward | East San Diego City |
| Est. Birth Year | ~1877 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Mccoy | Head | — | 43 | ~1877 |
| James Palmer | Son | — | 22 | ~1898 |
| Louis Mccoy | Son | — | 14 | ~1906 |
| Mary Mccoy | Spouse | — | 43 | ~1877 |
Census Appearances
1910
San Diego, …
Spouse, age 32
San Diego, California · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Years Married | 7 |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Connecticut |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
San Diego, …
Spouse, age 43
San Diego, California · implied b. ~1877 — 4 household members
| Surname | McCoy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Louisiana |
| Occupation | Stage Employee |
| Industry | Theatre |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
San Diego, …
Other, age 53
San Diego, California · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Mae |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 19 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Nova Scotia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
San-Diego-County, California
Spouse, age 61
San-Diego-County, California · implied b. ~1879 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Mae |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Mary Mccoy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccoy
Spouse · 1920 · age 43 · b. ~1877 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — San Diego, California
Open full size
1920 US Federal Census — San Diego, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu130unit:0817)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Thuberg | 50 | Head | — | California |
| 52 | Ephrath Larsen | 28 | Head | Gardener | Nebraska |
| 53 | Leah Larsen | 26 | Wife | Painter | Nebraska |
| 54 | Phyllis Larsen | 3 | Daughter | — | California |
| 55 | Dolores A. Hart | 37 | Head | — | Iowa |
| 56 | Anna G. Hart | 21 | Wife | Pressman | California |
| 57 | Donald B. Hart | 11 | Son | — | California |
| 58 | Mamie Hart | 9 | Daughter | — | California |
| 59 | Donald Hart | 7 | Son | — | California |
| 60 | James Hunnicker | 55 | Head | — | California |
| 61 | Fisher | 65 | Head | Garage Owner | Wisconsin |
| 62 | Nevada C. Fisher | 60 | Wife | — | Wisconsin |
| 63 | William Burke | 27 | Head | — | New York |
| 64 | Daniel Spear | 50 | Head | — | England |
| 65 | Sophia Spear | 49 | Wife | Farmer | England |
| 66 | Raymond Spear | 16 | Son | — | California |
| 67 | David J. King | 48 | Head | — | Pennsylvania |
| 68 | Martha King | 48 | Wife | Dressmaker | West Virginia |
| 69 | Christopher Hilton | 63 | Head | — | Maine |
| 70 | Joseph Gramly | 54 | Head | — | Canada |
| 71 | Cora Gramly | 46 | Wife | Insurance Agt | New Hampshire |
| 72 | Edward J. Brady | 44 | Friend | Salesman | England |
| 73 | Albert S. Alpers | 33 | Head | Furniture Dealer | Pennsylvania |
| 74 | Ethelyn S. Alpers | 36 | Wife | Music Teacher | Illinois |
| 75 | Albertes Buckman | 57 | Transportation Co. | Clerk | Missouri |
| 76 | Inez L. Buckman | 34 | Wife | Lecturer | California |
| 77 | Albert B. Buckman | 7 | Son | — | California |
| 78 | Harry G. Williams | 47 | Head | — | New Jersey |
| 79 | Elizabeth Williams | 42 | Private Shop | Dressmaker | Ireland |
| 80 | Florence L. Williams | 8 | Daughter | — | New York |
| 81 | George A. Lunn | 50 | Head | — | Massachusetts |
| 82 | Anna A. Lunn | 49 | Wife | Druggist | Vermont |
| 83 | William H. Mccoy | 43 | Head | — | Pennsylvania |
| 84 | Mary Mccoy THIS PERSON | 43 | Wife | Stage Employee | New Hampshire |
| 85 | James Palmer | 22 | Son | Salesman | California |
| 86 | Louis G. Mccoy | 14 | Son | Camera Operator | California |
| 87 | Gust H. Hanson | 48 | Head | — | Sweden |
| 88 | Margaret R. Romer | 50 | Head | — | Germany |
| 89 | Anna S. Green | 72 | Head | Tailor | Michigan |
| 90 | Harry H. Green | 40 | Son | Real Estate Agt | Illinois |
| 91 | John R. Stewart | 33 | Head | Real Estate Agt | Iowa |
| 92 | Alice M. Stewart | 31 | Wife | Building Contractor | Minnesota |
| 93 | — | None | — | — | — |
| 94 | — | None | — | — | — |
| 95 | — | None | — | — | — |
| 96 | — | None | — | — | — |
| 97 | — | None | — | — | — |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)