MS
Margaret Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Margaret Sullivan across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Occupation | solicitor |
| Industry | dry cleaners |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Solicitor |
| Township / Ward | Cleveland |
| Est. Birth Year | ~1912 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sullivan | Daughter | — | 28 | ~1912 |
| Ruth Sullivan | Daughter | — | 20 | ~1920 |
| Michael Sullivan | Head | — | 64 | ~1876 |
| John Sullivan | Son | — | 26 | ~1914 |
| Ada Sullivan | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Cuyahoga, Ohio
Daughter, age 8
Cuyahoga, Ohio · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Daughter, age 18
Cuyahoga, Ohio · implied b. ~1912 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Machine Operator |
| Industry | Candy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Daughter, age 28
Cuyahoga-County, Ohio · implied b. ~1912 — 5 household members
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Occupation | solicitor |
| Industry | dry cleaners |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Sullivan (~0.92 confidence) and father James Sullivan (~0.92 confidence) and father Michael Sullivan (~0.92 confidence) and mother Pauline Sullivan (~0.92 confidence) and mother Ada Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Sullivan
b. ~1877
Source father
● Household
· direct · ~0.92
Father
James Sullivan
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Michael Sullivan
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Pauline Sullivan
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Ada Sullivan
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Sullivan
Daughter · 1940 · age 28 · b. ~1912 · Ohio
★ You are viewing this record
Sibling
John Sullivan
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Sullivan
Sibling · 1940 · age 20
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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03204-00548)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | June F. Larson | 14 | daughter | — | Ohio |
| 42 | Wayne Larson | 4 | son | — | Ohio |
| 43 | William Hurley | 46 | head | Operator | Ohio |
| 44 | Loretta Hurley | 39 | wife | — | Ohio |
| 45 | Loretta Hurley | 15 | daughter | — | Ohio |
| 46 | William Jr. Hurley | 12 | son | — | Ohio |
| 47 | Martin Needham | 71 | father-in-law | — | Scotland |
| 48 | Joseph Needham | 43 | brother-in-law | Brakeman | Ohio |
| 49 | Eleanor Mclinty | 32 | niece | Stenographer | Ohio |
| 50 | Lawrence Heiland | 62 | head | Under Accountant | Ohio |
| 51 | Johanna Heiland | 64 | wife | — | Ohio |
| 52 | Waldo H. Hober | 41 | head | Driver | Ohio |
| 53 | Mary Hober | 39 | wife | — | Germany |
| 54 | Waldo Jr. Hober | 3 | son | — | Ohio |
| 55 | Dennis J. Black | 49 | head | Switchman | Ohio |
| 56 | Sarah Black | 48 | wife | — | Illinois |
| 57 | Earl Black | 16 | son | — | Ohio |
| 58 | Patricia Black | 5 | daughter | — | Ohio |
| 59 | James Black | 23 | son | Apprentice Bricklayer | Ohio |
| 60 | Mary Ann Black | 20 | daughter-in-law | — | Pennsylvania |
| 61 | Dennis J. Black | 0 | grandson | — | Ohio |
| 62 | Lawrence Mcnamara | 14 | ward | — | Ohio |
| 63 | William Davis | 11 | ward | — | Ohio |
| 64 | Eileen Mcguire | 9 | ward | — | Ohio |
| 65 | Louis J. Skala | 38 | head | Salesman | Ohio |
| 66 | Vlasta Skala | 44 | wife | — | Germany |
| 67 | Raymond Skala | 14 | son | — | Ohio |
| 68 | Herbert Skala | 11 | son | — | Ohio |
| 69 | Joseph Dillan | 40 | head | Property Man Elevator | Ohio |
| 70 | Louise Dillan | 35 | wife | Manager | Ohio |
| 71 | Michael D. Sullivan | 64 | head | Laborer | Ohio |
| 72 | Ada Sullivan | 61 | wife | — | Ohio |
| 73 | Margaret Sullivan THIS PERSON | 28 | daughter | Solicitor | Ohio |
| 74 | John Sullivan | 26 | son | Attendant | Ohio |
| 75 | Ruth Sullivan | 20 | daughter | — | Ohio |
| 76 | Harold Martins | 33 | head | Artist | Ohio |
| 77 | Mattie Martins | 65 | mother | — | Ohio |
| 78 | Thomas R. Oakley | 57 | head | Clerk | Michigan |
| 79 | Myrtle V. Oakley | 54 | wife | — | Canada |
| 80 | John Pettinger | 55 | head | Salesman | Ohio |
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 5 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)