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Mary Anderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Mary Anderson across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 5-person household.
Age 64
b. ~1876
Female
Spouse
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Anderson |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1876 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frances Anderson | Daughter | — | 10 | ~1930 |
| Chas Anderson | Head | — | 70 | ~1870 |
| Irvin Anderson | Son | — | 40 | ~1900 |
| Mary Anderson | Spouse | — | 64 | ~1876 |
| Frances Anderson | Spouse | — | 32 | ~1908 |
Census Appearances
1920
Rock Island, …
Spouse, age 44
Rock Island, Illinois · implied b. ~1876 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Rock Island, …
Spouse, age 54
Rock Island, Illinois · implied b. ~1876 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 21 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Rock-Island-County, Illinois
Spouse, age 64
Rock-Island-County, Illinois · implied b. ~1876 — 5 household members
| Surname | Anderson |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Anderson
Spouse · 1940 · age 64 · b. ~1876 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00876-00561)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Mills | 6 | Son | — | Illinois |
| 42 | Gary L Mills | 2 | Son | — | Illinois |
| 43 | Elizabeth Renick | 72 | Head | — | Illinois |
| 44 | Willis S Otto | 40 | Head | Chief Clerk | Illinois |
| 45 | Hazel D Otto | 42 | Wife | — | Illinois |
| 46 | Willis A Otto | 13 | Son | — | Iowa |
| 47 | Garland K Otto | 9 | Son | — | Iowa |
| 48 | Walter J Belle | 62 | Head | Owner | Illinois |
| 49 | Arthur C Arthur | 50 | Brother | Truck Gardener | Illinois |
| 50 | Louise M Arthur | 45 | Sister-in-law | — | Illinois |
| 51 | Marguerite S Arthur | 8 | Niece | — | Illinois |
| 52 | Isadore J Finkelstein | 41 | Head | Owner | Poland |
| 53 | Eva R Finkelstein | 37 | Wife | — | Illinois |
| 54 | Alan M Finkelstein | 16 | Son | — | Illinois |
| 55 | Herman J Friedman | 65 | Father-in-law | Physician | Lithuania |
| 56 | Belle L Friedman | 34 | Sister-in-law | — | Illinois |
| 57 | Karl Friedman | 25 | Brother-in-law | Journalist | Illinois |
| 58 | Margaret Verdeck | 34 | Maid | Maid | Iowa |
| 59 | Earl S Nichols | 41 | Head | Shearer | Iowa |
| 60 | Evelyn M Nichols | 36 | Wife | Packer | Iowa |
| 61 | Clara O Pardon | 65 | Head | — | Illinois |
| 62 | Norene Hurry | 15 | Lodger | — | Illinois |
| 63 | Bennie C Ferguson | 30 | Head | Gardener | Missouri |
| 64 | Jeanette M Ferguson | 27 | Wife | Assembler | Illinois |
| 65 | Donna J Ferguson | 8 | Daughter | — | Illinois |
| 66 | Harlan B Ferguson | 5 | Son | — | Illinois |
| 67 | Chas C Anderson | 70 | Head | Machinist | Denmark |
| 68 | Mary M Anderson THIS PERSON | 64 | Wife | — | Wisconsin |
| 69 | Irvin L Anderson | 40 | Son | Salesman | Illinois |
| 70 | Frances S Anderson | 32 | Wife | — | Iowa |
| 71 | Frances L Anderson | 10 | Daughter | — | Michigan |
| 72 | Ed Mccaughlin | 61 | Head | Owner | New York |
| 73 | Mamie Mccaughlin | 56 | Wife | — | Kansas |
| 74 | Samuel H Pickman | 56 | Head | Physician | Illinois |
| 75 | Mercedes Pickman | 48 | Wife | — | Illinois |
| 76 | M. Arthur Boettger | 33 | Head | Salesman | Illinois |
| 77 | Wilma P Boettger | 28 | Wife | — | Louisiana |
| 78 | H. Keith Collins | 59 | Head | Salesman | Illinois |
| 79 | Edith M Collins | 56 | Wife | Librarian | Illinois |
| 80 | Geo W Pruitt | 45 | Head | Owner | 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)