MR
Mary Robertson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Morgan-County, Illinois
Our Model Tree links this Mary Robertson across the 1930 and 1940 US Censuses in Morgan-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 8-person household.
Age 41
b. ~1899
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Illinois |
| Surname | Robertson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Jacksonville City |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Occupation | Finish Shirt |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 384 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Finish Shirt |
| Township / Ward | Jacksonville 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Minnie Robertson | Daughter | — | 14 | ~1926 |
| Anna Robertson | Daughter | — | 15 | ~1925 |
| Donna Robertson | Daughter | — | 8 | ~1932 |
| Phyllis Robertson | Daughter | — | 4 | ~1936 |
| Fred Robertson | Head | — | 59 | ~1881 |
| Junior Robertson | Son | — | 12 | ~1928 |
| J Robertson | Son | — | 17 | ~1923 |
| Mary Robertson | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Morgan, Illinois
Spouse, age 31
Morgan, Illinois · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 19 |
| Father's Birthplace | England |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Morgan-County, Illinois
Spouse, age 41
Morgan-County, Illinois · implied b. ~1899 — 8 household members
| Surname | Robertson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Jacksonville City |
| 1935 Residence (County) | Morgan |
| Occupation | Finish Shirt |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 384 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| 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 Robertson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Robertson
Spouse · 1940 · age 41 · b. ~1899 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Morgan-County, Illinois
Open full size
1940 US Federal Census — Morgan-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00861-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hallard Miley | 6 | Son | — | Illinois |
| 2 | Charlotte Miley | 4 | Daughter | — | Illinois |
| 3 | Daniel Holley | 60 | Head | General Work | Illinois |
| 4 | Grace Jr. Lankford | 23 | Head | Book Keeper | Illinois |
| 5 | Helen J. Lankford | 22 | Wife | Beautician | Illinois |
| 6 | Sadie Lott | 60 | Head | Home Work | Illinois |
| 7 | Edward Dunavan | 46 | Head | Laborer | Illinois |
| 8 | Eleanor Mcpeeley | 33 | Sister | House Work | Illinois |
| 9 | Margaret Dunavan | 9 | Niece | — | Illinois |
| 10 | Bernice Buckley | 37 | Sister | Housework | Illinois |
| 11 | Earl P. Best | 27 | Head | Painter (Interior) | Illinois |
| 12 | Marie Best | 19 | Wife | House Wife | Kentucky |
| 13 | Dean Tucker | 53 | Head | — | Illinois |
| 14 | Hazel Tucker | 46 | Wife | House Wife | Illinois |
| 15 | James A. B. Tucker | 19 | Son | Enrollee | Illinois |
| 16 | Francis Tucker | 17 | Son | Farm Hand | Illinois |
| 17 | Betty Tucker | 13 | Daughter | — | Illinois |
| 18 | Donald Tucker | 11 | Son | — | Illinois |
| 19 | George Tucker | 9 | Son | — | Illinois |
| 20 | Ralph Tucker | 7 | Son | — | Illinois |
| 21 | Patricia Tucker | 5 | Daughter | — | Illinois |
| 22 | Fred Robertson | 59 | Head | Laborer | Texas |
| 23 | Mary Robertson THIS PERSON | 41 | Wife | Finish Shirt | Illinois |
| 24 | Anna Robertson | 15 | Daughter | — | Illinois |
| 25 | Minnie Robertson | 14 | Daughter | — | Illinois |
| 26 | Junior Fredrick Robertson | 12 | Son | — | Illinois |
| 27 | Donna Jean Robertson | 8 | Daughter | — | Illinois |
| 28 | Phyllis Robertson | 4 | Daughter | — | Illinois |
| 29 | J. T. A. B. Robertson | 17 | Son | Enrollee | Illinois |
| 30 | Bertel Martin | 24 | Head | Rug Cleaner | Kentucky |
| 31 | Hazel Martin | 26 | Wife | House Wife | Illinois |
| 32 | Pearl Martin | 0 | Son | — | Illinois |
| 33 | Raymond Rosans | 5 | Step Son | — | Illinois |
| 34 | Phyllis Rosans | 4 | Step Daughter | — | Illinois |
| 35 | William Rosans | 3 | Step Son | — | Illinois |
| 36 | John R. Willoughby | 52 | Head | Common Laborer | Illinois |
| 37 | Charlie C. Willoughby | 43 | Brother | Laborer | Illinois |
| 38 | Jack Hart | 51 | Head | Hod Carrier | Kentucky |
| 39 | Mayme Hart | 28 | Wife | Finishing Coats | Kentucky |
| 40 | Truman Edward Hart | 11 | Son | — | 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)