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Margaret Kelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Margaret Kelly across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Kelly |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Highest Grade | S |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Patricia Kelly | Daughter | — | 9 | ~1931 |
| Margaret Kelly | Daughter | — | 14 | ~1926 |
| Barbara Kelly | Daughter | — | 10 | ~1930 |
| Alice Kelly | Daughter | — | 8 | ~1932 |
| Kathleen Kelly | Daughter | — | 12 | ~1928 |
| George Kelly | Head | — | 40 | ~1900 |
| George Kelly | Son | — | 7 | ~1933 |
| Elizabeth Kelly | Spouse | — | 35 | ~1905 |
Census Appearances
1930
San Francisco, …
Daughter, age 5
San Francisco, California · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 14
San-Francisco-County, California · implied b. ~1926 — 8 household members
| Surname | Kelly |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Highest Grade | S |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Margaret Kelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Kelly
Daughter · 1940 · age 14 · b. ~1926 · California
★ You are viewing this record
Sibling
George Kelly
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Kelly
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Kelly
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Kelly
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Kelly
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00308-00553)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Audrey Carmichael | 5 | Daughter | — | California |
| 42 | George J. Kelly | 40 | Head | Painter | California |
| 43 | Elizabeth Kelly | 35 | Wife | — | England |
| 44 | Margaret Kelly THIS PERSON | 14 | Daughter | — | California |
| 45 | Kathleen Kelly | 12 | Daughter | — | California |
| 46 | Barbara Kelly | 10 | Daughter | — | California |
| 47 | Patricia Kelly | 9 | Daughter | — | California |
| 48 | Alice Kelly | 8 | Daughter | — | California |
| 49 | George Kelly | 7 | Son | — | California |
| 50 | Antonio Ariotis | 41 | Head | Florist | Greece |
| 51 | Viola Ariotis | 44 | Wife | — | Turkey |
| 52 | May S. Heim | 68 | Head | — | Nebraska |
| 53 | Kittie M. Heim | 49 | Daughter | Sales Lady | Nebraska |
| 54 | Ann Attell | 31 | Head | Clerk | Minn. |
| 55 | Claire L. Attell | 8 | Daughter | — | Calif |
| 56 | Mary Petersen | 69 | Grand Mother | — | Germany |
| 57 | Lois Dixon | 23 | Head | Nurse | Calif |
| 58 | Ella Ray Meyer | 24 | Roommate | Nurse | Calif |
| 59 | Annie B. Harthorn | 71 | Head | — | Calif |
| 61 | Edgar Ward Couper | 73 | Head | Medical Doctor | England |
| 62 | John M. King | 55 | Head | Blacksmith Helper | Missouri |
| 63 | Lena L. King | 60 | Wife | — | Missouri |
| 64 | Lucia Winter | 37 | Head | — | Missouri |
| 65 | Marie Johnson | 75 | Head | — | Switzerland |
| 66 | Dorothy Williams | 39 | Head | Seamstress | Missouri |
| 67 | Joseph Luizza | 43 | Head | Printer | New Orleans |
| 68 | Florence Luizza | 42 | Wife | — | Ireland |
| 69 | Archie Davidson | 45 | Head | Clerk | Oklahoma |
| 70 | Ella Davidson | 44 | Wife | — | Germany |
| 71 | Wilma Davidson | 11 | Daughter | — | Calif |
| 72 | Frances Davidson | 8 | Daughter | — | Calif |
| 73 | Harold W. Casto | 47 | Head | Bldg. Maintenance | Calif |
| 74 | Helen Casto | 35 | Wife | Manager | Texas |
| 75 | James Williams | 12 | Son | — | Texas |
| 76 | William Mccourt | 62 | Head | Patrolman | Ohio |
| 77 | Ema Mccourt | 58 | Wife | — | Iowa |
| 78 | Donald Black | 32 | Head | Stevedore | Calif |
| 79 | Margaret Black | 25 | Wife | — | Calif |
| 80 | Tonnes Gausel | 46 | Head | Foreman Stevedore | Norway |
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)