MR
Mary Robbins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mclean-County, Illinois
Our Model Tree links this Mary Robbins across the 1930 and 1940 US Censuses in Mclean-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1931), then head of a 10-person household.
Age 9
b. ~1931
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mclean-County, Illinois |
| Surname | Robbins |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | McLean |
| Additional Details | |
| Occupation | S. |
| Industry | 6 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | S. |
| Township / Ward | Money Creek Twp |
| Est. Birth Year | ~1931 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Ralph Robbins | Son | — | 14 | ~1926 |
| Paul Robbins | Head | — | 21 | ~1919 |
| Mary Robbins | Daughter | — | 9 | ~1931 |
| Helen Robbins | Daughter | — | 20 | ~1920 |
| Glenny Robbins | Son | — | 4 | ~1936 |
| Betty Robbins | Daughter | — | 6 | ~1934 |
| Geneva Robbins | Daughter | — | 12 | ~1928 |
| Francis Robbins | Son | — | 7 | ~1933 |
| Wilford Robbins | Son | — | 16 | ~1924 |
| Leo Robbins | Son | — | 18 | ~1922 |
Census Appearances
1930
Mclean, Illinois
Daughter, age 1
Mclean, Illinois · implied b. ~1929 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robbins |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mclean-County, Illinois
Daughter, age 9
Mclean-County, Illinois · implied b. ~1931 — 10 household members
| Surname | Robbins |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | McLean |
| Occupation | S. |
| Industry | 6 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Robbins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Robbins
Daughter · 1940 · age 9 · b. ~1931 · Illinois
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Sibling
Geneva Robbins
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Robbins
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Robbins
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Robbins
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilford Robbins
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Robbins
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Robbins
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenny Robbins
Sibling · 1940 · age 4
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 — Mclean-County, Illinois
Open full size
1940 US Federal Census — Mclean-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00842-00571)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Robbins | 21 | Head | Laborer | Illinois |
| 2 | Helen Robbins | 20 | daughter | H. | Illinois |
| 3 | Leo Robbins | 18 | son | Laborer | Illinois |
| 4 | Wilford Robbins | 16 | son | S. | Illinois |
| 5 | Ralph Robbins | 14 | son | S. | Illinois |
| 6 | Geneva Robbins | 12 | daughter | S. | Illinois |
| 7 | Mary Robbins THIS PERSON | 9 | daughter | S. | Illinois |
| 8 | Francis Robbins | 7 | son | S. | Illinois |
| 9 | Betty Robbins | 6 | daughter | S. | Illinois |
| 10 | Glenny Robbins | 4 | son | 0 | Illinois |
| 11 | Harry Fritz | 63 | Head | Farmer | Illinois |
| 12 | Cora Fritz | 61 | wife | 0 | Illinois |
| 13 | Gordon Fritz | 28 | son | Labor | Illinois |
| 14 | Helen Fritz | 25 | daughter | 0 | Illinois |
| 15 | Fanny Fritz | 67 | sister | 0 | Illinois |
| 16 | Clemok Odgen | 76 | brother | 0 | Illinois |
| 17 | Warren R. Dodson | 40 | Head | Farmer | Illinois |
| 18 | Clara Dodson | 39 | wife | 5 | Illinois |
| 19 | Myra Dodson | 13 | daughter | S. | Illinois |
| 20 | Norma Dodson | 11 | daughter | S. | Illinois |
| 21 | Louis Dodson | 9 | son | S. | Illinois |
| 22 | Helen Dodson | 7 | daughter | S. | Illinois |
| 23 | Richard Dodson | 5 | son | S. | Illinois |
| 24 | Robert Dodson | 4 | son | S. | Illinois |
| 25 | Frank Dodson | 69 | Father | Farmer | Illinois |
| 26 | J. W. Easterbrook | 67 | Head | Farmer | Ohio |
| 27 | Jessie Easterbrook | 60 | wife | 0 | Kentucky |
| 28 | Roy L. Mead | 47 | Head | Farmer | Illinois |
| 29 | Ollie Mead | 47 | wife | 5 | Illinois |
| 30 | Leroy Mead | 26 | son | Labor | Illinois |
| 31 | C. E. Naffziger | 55 | Head | Farmer | Illinois |
| 32 | Ruth Naffziger | 46 | wife | 5 | Illinois |
| 33 | Warren Naffziger | 24 | son | Labor | Illinois |
| 34 | Mary Naffziger | 21 | daughter | 5 | Illinois |
| 35 | Ruth Naffziger | 18 | daughter | 6 | Illinois |
| 36 | Dean Naffziger | 12 | son | 6 | Illinois |
| 37 | John Naffziger | 12 | son | 6 | Illinois |
| 38 | Andrew Dodson | 23 | Head | Farmer | Virginia |
| 39 | Zula Dodson | 43 | wife | 0 | Kentucky |
| 40 | Carl Dodson | 17 | son | Laborer | Illinois |
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)