MM
Mary Mcnulty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Mary Mcnulty across the 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | McNulty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Mcnulty | Son | — | 15 | ~1925 |
| James Mcnulty | Son | — | 7 | ~1933 |
| James Mcnulty | Head | — | 47 | ~1893 |
| Catherine Mcnulty | Spouse | — | 42 | ~1898 |
| Vincent Mcnulty | Son | — | 11 | ~1929 |
| John Mcnulty | Son | — | 13 | ~1927 |
| Mary Mcnulty | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Marion, Indiana
Daughter, age 5
Marion, Indiana · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | Mary C. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Daughter, age 16
Marion-County, Indiana · implied b. ~1924 — 7 household members
| Surname | McNulty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mcnulty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcnulty
Daughter · 1940 · age 16 · b. ~1924 · Indiana
★ You are viewing this record
Sibling
John Mcnulty
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Mcnulty
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcnulty
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcnulty
Sibling · 1940 · age 15
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01126-00187)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Kelly | 30 | Wife | Clerk | Indiana |
| 2 | Ella Kelly | 65 | Mother | — | Indiana |
| 3 | Anna Fitzpatrick | 68 | Aunt | Seamstress | Ohio |
| 4 | James Mcnulty | 47 | Head | Machinist Helper | Irish Free State |
| 5 | Catherine Mcnulty | 42 | Wife | — | Irish Free State |
| 6 | Mary Mcnulty THIS PERSON | 16 | Daughter | — | Indiana |
| 7 | Edward Mcnulty | 15 | Son | — | Indiana |
| 8 | John Mcnulty | 13 | Son | — | Indiana |
| 9 | Vincent Mcnulty | 11 | Son | — | Indiana |
| 10 | James Jr. Mcnulty | 7 | Son | — | Indiana |
| 11 | John F. Mars | 56 | Head | Carpenter | Indiana |
| 12 | Lula Mars | 53 | Wife | — | Indiana |
| 13 | Dayton Thomas | 44 | Lodger | Cook | Iowa |
| 14 | Helen Abel | 32 | Lodger | Stenographer | Indiana |
| 15 | Eula E. Griffy | 50 | Head | Clerk | Massachusetts |
| 16 | Ralph Humphreys | 51 | Brother | Sheet Metal Worker | Indiana |
| 17 | Vincent Eretgia|Eretzia | 68 | Head | Tailor | Italy |
| 18 | Philip F. Foley | 34 | Head | Welder | Missouri |
| 19 | Margaret H. Foley | 39 | Wife | Stenographer | Missouri |
| 20 | Joseph A. Nall | 55 | Head | Barber | Kentucky |
| 21 | Maude Nall | 47 | Wife | — | Kentucky |
| 22 | Joseph L. Nall | 18 | Son | New Worker | Indiana |
| 23 | George H. Comstock | 66 | Head | — | Illinois |
| 24 | Pearl Comstock | 50 | Wife | — | Indiana |
| 25 | Esther Comstock | 19 | Daughter | — | Indiana |
| 26 | Homer H. Barekman | 39 | Head | Electrical Engineer | Indiana |
| 27 | Mary E. Barekman | 38 | Wife | — | Indiana |
| 28 | Jonas H. Bowers | 74 | Father-in-law | — | Maryland |
| 29 | William H. Moore | 51 | Head | Barber | Indiana |
| 30 | Mary Ruth Moore | 48 | Wife | Saleslady | Ohio |
| 31 | Mary Bailey | 25 | Lodger | Proprietor | Indiana |
| 32 | Joseph Edward Flynn | 62 | Head | Assistant Manager | England |
| 33 | Anne Flynn | 57 | Wife | — | England |
| 34 | Hugh Flynn | 27 | Son | Auditor | Indiana |
| 35 | Kathleen Flynn | 35 | Daughter | Stenographer | Indiana |
| 36 | Edward Joseph Flynn | 20 | Son | Manager | Indiana |
| 37 | Frank Flynn | 16 | Son | — | Indiana |
| 38 | John J. Thale | 58 | Head | Lithographer | Indiana |
| 39 | Margaret B. Thale | 65 | Wife | — | Indiana |
| 40 | Mary E. Harvey | 22 | Daughter | Comptometer | Indiana |
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)