MD
Margaret Donovan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Margaret Donovan across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Marie & Thos — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Donovan |
| Given Name | Margaret C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Saleswoman advertising |
| Industry | Public Utility Telephone |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 278 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Saleswoman Advertising |
| Township / Ward | Los Angeles |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Patricia Donovan | Daughter | — | 19 | ~1921 |
| Margaret Donovan | Daughter | — | 22 | ~1918 |
| Marie Donovan | Spouse | — | 50 | ~1890 |
| Thos Donovan | Head | — | 55 | ~1885 |
Census Appearances
1920
Los Angeles, …
Daughter, age 2
Los Angeles, California · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Daughter, age 12
Los Angeles, California · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | Margaret C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Free State Ireland |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 22
Los-Angeles-County, California · implied b. ~1918 — 4 household members
| Surname | Donovan |
| Given Name | Margaret C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Occupation | Saleswoman advertising |
| Industry | Public Utility Telephone |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 278 |
| Highest Grade | C-4 |
| 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 Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Marie Donovan (~0.92 confidence) and father Thos Donovan (~0.92 confidence) and father William Donovan (~0.92 confidence) and father William Donovan (~0.92 confidence) and mother Marie Donovan (~0.92 confidence) and mother Marie Donovan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Marie Donovan
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Thos Donovan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
William Donovan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
William Donovan
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Marie Donovan
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Marie Donovan
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Donovan
Daughter · 1940 · age 22 · b. ~1918 · California
★ You are viewing this record
Sibling
Patricia Donovan
Sibling · 1940 · age 19
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 — 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-t0627-00417-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chase | None | — | — | — |
| 42 | Mary Florence West | 59 | Head | None | California |
| 43 | Peter G. Brady | 85 | Head | None | Ireland |
| 44 | Mary Ann Brady | 68 | Wife | None | Indiana |
| 45 | Mary Brady | 50 | Daughter | Buyer | Indiana |
| 46 | Anna L. Green | 45 | Servant | Housekeeper | Missouri |
| 47 | George Polkinghorn | 41 | Head | None | Colorado |
| 48 | Josephine Eril | 55 | Housekeeper | Practical Nurse | Michigan |
| 49 | John Walker | 45 | Head | Contractor | Nebraska |
| 50 | Edith G. Walker | 39 | Wife | Comptometer Operator | Nebraska |
| 51 | Dorothy Walker | 19 | Daughter | Stenographer | Nebraska |
| 52 | Esther D. Trout | 42 | Head | Night Manager | Illinois |
| 53 | Julia Margaret Silloway | 25 | Daughter | Clerk | Illinois |
| 54 | Marion Silloway | 18 | Daughter | None | California |
| 55 | Willard G. Thompson | 45 | Head | Paint Business | Kentucky |
| 56 | Nina S. Thompson | 45 | Wife | Saleswoman | Kentucky |
| 57 | Henry J. Quillin | 40 | Head | Inspector | New Jersey |
| 58 | Robert Lawson | 69 | Head | Motorman | Pennsylvania |
| 59 | Bertha W. Lawson | 62 | Sister-in-law | None | Pennsylvania |
| 60 | H. B. Whaley | 64 | Lodger | None | Missouri |
| 61 | Abe Hunter | 54 | Lodger | Service Manager | Russia |
| 62 | Richard Coats | 19 | Lodger | Dishwasher | Ohio |
| 63 | Thos. E. Donovan | 55 | Head | Manager | Eire |
| 64 | Marie R. Donovan | 50 | Wife | None | New York |
| 65 | Margaret C. Donovan THIS PERSON | 22 | Daughter | Saleswoman Advertising | California |
| 66 | Patricia M. Donovan | 19 | Daughter | None | California |
| 67 | Edith D. Sparks | 63 | Head | None | Iowa |
| 68 | Richard S. Sparks | 42 | Son | Director Pub. Relations | Minnesota |
| 69 | Rhea Sparks | 42 | Daughter-in-law | None | Minnesota |
| 70 | Olga B. Dolfinger | 65 | Head | None | Indiana |
| 71 | Madeline Chinnall | 62 | Daughter | None | Indiana |
| 72 | Otto Bink | 69 | Brother | None | Indiana |
| 73 | Nelle Bink | 59 | Sister | None | Indiana |
| 74 | John Benning | 84 | Cousin | None | Ohio |
| 75 | Chas. G. Eastman | 57 | Head | None | Wisconsin |
| 76 | Sarah Eastman | 49 | Wife | None | Canada |
| 77 | Marie Eastman | 11 | Daughter | None | California |
| 78 | Betty Eastman | 7 | Daughter | None | California |
| 79 | Louis Gilbert Ridenour | 28 | Head | Mechanic | Iowa |
| 80 | Wave Delores Ridenour | 20 | Wife | — | South Dakota |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)