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 Mary — first a daughter (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Sullivan |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Occupation | Nurse |
| Industry | Elevator Mfg Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 436 |
| Highest Grade | H-4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Nurse |
| Township / Ward | East Cleveland City |
| Est. Birth Year | ~1899 |
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 |
|---|---|---|---|---|
| Helen Sullivan | Daughter | — | 29 | ~1911 |
| Mary Sullivan | Daughter | — | 39 | ~1901 |
| Margaret Sullivan | Daughter | — | 41 | ~1899 |
| Dorothy Sullivan | Daughter | — | 32 | ~1908 |
| Mary Sullivan | Head | — | 64 | ~1876 |
Census Appearances
1920
Cuyahoga, Ohio
Other, age 20
Cuyahoga, Ohio · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Sister-in-law |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New York |
| Occupation | Waitress |
| Industry | Hotel |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Other, age 30
Cuyahoga, Ohio · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret M |
| Relationship to Head | Partner |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Nurse |
| Industry | Private Duty |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Daughter, age 41
Cuyahoga-County, Ohio · implied b. ~1899 — 5 household members
| Surname | Sullivan |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Occupation | Nurse |
| Industry | Elevator Mfg Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 436 |
| Highest Grade | H-4 |
| 1935 Residence | Ohio |
| 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: mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Sullivan
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Sullivan
Daughter · 1940 · age 41 · b. ~1899 · Ohio
★ You are viewing this record
Sibling
Mary Sullivan
Sibling · 1940 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Sullivan
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Sullivan
Sibling · 1940 · age 32
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-t0627-03050-00661)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grace F. Glascott | 42 | Daughter | Layout Trader | New York |
| 2 | Robert O. Glascott | 40 | Son | Supervisor | New York |
| 3 | John A. Byrnes | 71 | Head | — | Ohio |
| 4 | Mary M. Byrnes | 62 | Wife | — | Ohio |
| 5 | John J. Byrnes | 25 | Son | Layout Man | Ohio |
| 6 | William J. Wade | 55 | Head | Foreman | Ohio |
| 7 | Marie Wade | 58 | Wife | — | Ohio |
| 8 | Marcella (At) Wade | 22 | Daughter | Registered Nurse | Ohio |
| 9 | Rosemary Wade | 17 | Daughter | — | Ohio |
| 10 | Phillip Engert | 91 | Father-in-law | — | Germany |
| 11 | Isabelle Woffert | 76 | Head | — | Canada-Eng |
| 12 | Marie Woffert | 41 | Daughter | Secretary | Canada-Eng |
| 13 | Edward Anderson | 52 | Head | Salesman | Ohio |
| 14 | Olive Anderson | 45 | Wife | — | Ohio |
| 15 | Edward Jr. Anderson | 24 | Son | Machinist | Ohio |
| 16 | Rita Anderson | 21 | Daughter | New Worker | Ohio |
| 17 | Alice Anderson | 16 | Daughter | — | Ohio |
| 18 | William Anderson | 13 | Son | — | Ohio |
| 19 | Noreen Anderson | 8 | Daughter | — | Ohio |
| 20 | Eileen Anderson | 8 | Daughter | — | Ohio |
| 21 | Patsy Anderson | 5 | Daughter | — | Ohio |
| 22 | Kenneth Heister | 25 | Son-in-law | Machinist | Illinois |
| 23 | Mary Heister | 22 | Daughter | — | Ohio |
| 24 | Mary Tillman | 65 | Head | — | Eire |
| 25 | Winifred Tillman | 24 | Daughter | Investigator | Ohio |
| 26 | Oliver Schroeder | 56 | Head | Proprietor | Ohio |
| 27 | Mable Schroeder | 49 | Wife | — | Ohio |
| 28 | Oliver Jr. Schroeder | 24 | Son | — | Ohio |
| 29 | Lucia H. Pease | 59 | Head | — | New York |
| 30 | Fred Gulang | 54 | Head | Proprietor | Ohio |
| 31 | Marie Gulang | 49 | Wife | — | Ohio |
| 32 | Robert Gulang | 24 | Son | Bookkeeper | Ohio |
| 33 | Marjorie Gulang | 20 | Daughter | Stenographer | Ohio |
| 34 | Mary Sullivan | 64 | Head | — | Ohio |
| 35 | Margaret M. Sullivan THIS PERSON | 41 | Daughter | Nurse | Ohio |
| 36 | Mary G. Sullivan | 39 | Daughter | Stenographer | Ohio |
| 37 | Dorothy Sullivan | 32 | Daughter | Stenographer | Ohio |
| 38 | Helen Sullivan | 29 | Daughter | Sales Lady | Ohio |
| 39 | Frederick W. Neils | 45 | Head | Salesman | Ohio |
| 40 | Nettie Neils | 44 | Wife | — | Ohio |
Pedigree Summary
Margaret + 3 siblings
Gen 1 · 1 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)