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John Mcnulty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this John Mcnulty across the 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | McNulty |
| Given Name | John C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Minneapolis |
| Est. Birth Year | ~1925 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Robert Mcnulty | Son | — | 19 | ~1921 |
| Mildred Mcnulty | Spouse | — | 41 | ~1899 |
| Robert Murphy | Other | — | 40 | ~1900 |
| Lucy Mcnulty | Daughter | — | 7 | ~1933 |
| John Mcnulty | Son | — | 15 | ~1925 |
| Mildred Mcnulty | Daughter | — | 12 | ~1928 |
| John Mcnulty | Head | — | 45 | ~1895 |
Census Appearances
1930
Hennepin, Minnesota
Son, age 5
Hennepin, Minnesota · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Missouri |
| Mother's Birthplace | New York |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Son, age 15
Hennepin-County, Minnesota · implied b. ~1925 — 7 household members
| Surname | McNulty |
| Given Name | John C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 John Mcnulty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcnulty
Son · 1940 · age 15 · b. ~1925 · Minnesota
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Sibling
Mildred Mcnulty
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Mcnulty
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcnulty
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 — Hennepin-County, Minnesota
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1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01993-00862)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fernand, Patrick Farnand | 5 | son | — | Minnesota |
| 42 | Ilona Maki | 32 | Maid | Maid | Minnesota |
| 43 | Darrell Davis | 60 | Head | U Of M Professor | Minnesota |
| 44 | Elsie Davis | 57 | Wife | — | Michigan |
| 45 | J. Cameron Jenkins | 59 | Head | Sec. Treas. | Delaware |
| 46 | Ruth M. Jenkins | 49 | Wife | — | Illinois |
| 47 | John C. Jr. Jenkins | 16 | Son | — | Minnesota |
| 48 | Nancy L. Jenkins | 14 | Daughter | — | Minnesota |
| 49 | Lloyd C. Gretchan | 61 | Head | Sales Manager | Minnesota |
| 50 | Nellie Gretchan | 61 | Wife | — | Minnesota |
| 51 | Robert Gretchan | 25 | Son | Clerk | Minnesota |
| 52 | Elizabeth Reed | 53 | Sister in law | — | Minnesota |
| 53 | John C. Mcnulty | 45 | Head | Grain Board Bureau | Minnesota |
| 54 | Mildred E. Mcnulty | 41 | Wife | — | New York |
| 55 | Robert Mcnulty | 19 | Son | Clerk | Minnesota |
| 56 | John C. Jr. Mcnulty THIS PERSON | 15 | Son | — | Minnesota |
| 57 | Mildred E. Mcnulty | 12 | Daughter | — | Minnesota |
| 58 | Lucy B. Mcnulty | 7 | Daughter | — | Minnesota |
| 59 | Robert J. Murphy | 40 | Roomer | — | New York |
| 60 | Ignatius Roberg | 57 | Head | — | Norway |
| 61 | Eva Roberg | 53 | Daughter | Bookkeeper | Minnesota |
| 62 | William Roberg | 49 | Son | Buyer | Ohio |
| 63 | Benjamin Roberg | 47 | Son | Superintendent | Ohio |
| 64 | Julia Roberg | 59 | Daughter | — | Ohio |
| 65 | J. C. Cavellier | 79 | Head | Music Paper Publisher | Holland |
| 66 | Dorothy Cavellier | 40 | Daughter | Clerk | Wisconsin |
| 67 | Cyrus H. Ritchie | 38 | Head | Accountant | Minnesota |
| 68 | Edith L. Ritchie | 37 | Wife | — | Pennsylvania |
| 69 | Graham Ritchie | 14 | Son | — | Minnesota |
| 70 | Robert A. Ritchie | 9 | Son | — | Minnesota |
| 71 | Marilyn E. Ritchie | 7 | Daughter | — | Minnesota |
| 72 | James F. Ritchie | 5 | Son | — | Minnesota |
| 73 | Donald W. Ritchie | 3 | Son | — | Minnesota |
| 74 | Lillian Grothe | 19 | Maid | Maid | Minnesota |
| 75 | Sam Dittenhoefer | 64 | Head | Salesman | Ohio |
| 76 | Amelia Dittenhoefer | 52 | Wife | — | Minnesota |
| 77 | Sam Jr. Dittenhoefer | 21 | Son | Shipping Clerk | Minnesota |
| 78 | R. T. Merry | 55 | Head | Salesman | Massachusetts |
| 79 | Mary S. Merry | 54 | Wife | — | New York |
| 80 | Violet M. Merry | 28 | Daughter | Clerk | Massachusetts |
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)