RM
Robert Mcdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Onondaga-County, New York
Our Model Tree links this Robert Mcdonald across the 1930 and 1940 US Censuses in Onondaga-County, New York (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Onondaga-County, New York |
| Surname | McDonald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Syracuse |
| 1935 Residence (County) | Onondaga |
| Additional Details | |
| Occupation | Advertising |
| Industry | New paper |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 560 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Advertising |
| Township / Ward | Syracuse |
| Est. Birth Year | ~1919 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Jane Mcdonald | Daughter | — | 22 | ~1918 |
| Robert Mcdonald | Head | — | 47 | ~1893 |
| John Mcdonald | Son | — | 10 | ~1930 |
| James Mcdonald | Son | — | 12 | ~1928 |
| Richard Mcdonald | Son | — | 18 | ~1922 |
| William Mcdonald | Son | — | 9 | ~1931 |
| Daniel Mcdonald | Son | — | 7 | ~1933 |
| Thomas Mcdonald | Son | — | 6 | ~1934 |
| Robert Mcdonald | Son | — | 21 | ~1919 |
| Marie Mcdonald | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Onondaga, New …
Son, age 11
Onondaga, New York · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Donald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Onondaga-County, New …
Son, age 21
Onondaga-County, New York · implied b. ~1919 — 10 household members
| Surname | McDonald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Syracuse |
| 1935 Residence (County) | Onondaga |
| Occupation | Advertising |
| Industry | New paper |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 560 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Robert Mcdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mcdonald
Son · 1940 · age 21 · b. ~1919 · New York
★ You are viewing this record
Sibling
William Mcdonald
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdonald
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Mcdonald
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Mcdonald
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mcdonald
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Mcdonald
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonald
Sibling · 1940 · age 10
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 — Onondaga-County, New York
Open full size
1940 US Federal Census — Onondaga-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02854-00652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank Edw Page | 57 | Head | Cellarman | New York |
| 42 | Mary A Page | 54 | Wife | — | Scotland |
| 43 | Thomas L Page | 23 | Son | Operator | New York |
| 44 | Rosemary Page | 18 | daughter | — | New York |
| 45 | Richard Page | 15 | son | — | New York |
| 46 | Hildreth Page | None | In-law | 40 | H 2 |
| 47 | Rosalyn Page | 13 | Granddaughter | — | New York |
| 48 | Anthony Agate | 28 | Head | Electrician | New York |
| 49 | Elsie B Agate | 27 | Wife | — | New York |
| 50 | Thos. Shaughnessy | 33 | Head | Manager | New York |
| 51 | Claire A Shaughnessy | 30 | Wife | — | New York |
| 52 | Eliza Daniels | 80 | Head | — | New York |
| 53 | Emily Huson | 80 | Lodger | — | New York |
| 54 | John H Keller | 65 | Head | Machinist | New York |
| 55 | Ida M Keller | 64 | Wife | — | New York |
| 56 | John L Keller | 38 | Son | Machine Shop | New York |
| 57 | Charles Mittelstadt | 49 | Head | Die Setter | New York |
| 58 | Jessie Mittelstadt | 52 | Wife | Clerk | New York |
| 59 | John S Russell | 35 | Head | Salesman | New York |
| 60 | Caroline R Russell | 34 | Wife | — | New York |
| 61 | Clara E Russell | 3 | daughter | — | New York |
| 62 | Carl Hackel | 48 | Head | — | Germany |
| 63 | Anna K Hackel | 49 | Wife | — | New York |
| 64 | Carlton A Hackel | 21 | Son | Machinist Helper | New York |
| 65 | Raymond G Hackel | 20 | Son | Clerk | New York |
| 66 | Fredick Lenhart | 48 | Head | Conductor | New York |
| 67 | Ethel Lenhart | 48 | Wife | — | New York |
| 68 | Ethel Lenhart | 16 | daughter | — | New York |
| 69 | Ann Lenhart | 11 | daughter | — | New York |
| 70 | Catherine Lenhart | 7 | daughter | — | New York |
| 71 | Robert Mcdonald | 47 | Head | Plumber | New York |
| 72 | Marie B Mcdonald | 35 | Wife | — | New York |
| 73 | Jane Mcdonald | 22 | daughter | Teacher | New York |
| 74 | Robert Mcdonald THIS PERSON | 21 | Son | Advertising | New York |
| 75 | Richard Mcdonald | 18 | Son | — | New York |
| 76 | James Mcdonald | 12 | Son | — | New York |
| 77 | John Keith Mcdonald | 10 | Son | — | New York |
| 78 | William Mcdonald | 9 | Son | — | New York |
| 79 | Daniel Mcdonald | 7 | Son | — | New York |
| 80 | Thomas Dolan Mcdonald | 6 | Son | — | New York |
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)