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Margaret Allen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Margaret Allen across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1862), then head of a 5-person household.
Age 78
b. ~1862
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Allen |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1862 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Marguerite Allen | Daughter | — | 44 | ~1896 |
| Ada Siders | Daughter | — | 50 | ~1890 |
| John Allen | Head | — | 84 | ~1856 |
| Donald Siders | Son | — | 8 | ~1932 |
| Margaret Allen | Spouse | — | 78 | ~1862 |
Census Appearances
1920
Rock Island, …
Spouse, age 57
Rock Island, Illinois · implied b. ~1863 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Rock Island, …
Spouse, age 69
Rock Island, Illinois · implied b. ~1861 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 19 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Rock-Island-County, Illinois
Spouse, age 78
Rock-Island-County, Illinois · implied b. ~1862 — 5 household members
| Surname | Allen |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Margaret Allen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Allen
Spouse · 1940 · age 78 · b. ~1862 · 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-t0627-00876-00516)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Burich | 12 | Son | — | Illinois |
| 2 | Pauline Gunnerson | 68 | Head | — | Illinois |
| 3 | Joseph Ritz | 60 | Head | Assessor | Illinois |
| 4 | Gertrude Ritz | 58 | Wife | — | Illinois |
| 5 | Donald Ritz | 30 | Son | Clerk | Canada |
| 6 | Nancy Ritz | 6 | Daughter | — | Illinois |
| 7 | William Fitzsimmons | 64 | Head | Janitor | Illinois |
| 8 | Clara Fitzsimmons | 62 | Wife | — | Illinois |
| 9 | Adeline Schroeder | 64 | Head | — | Iowa |
| 10 | Irene Orth | 40 | Daughter | Clerk | Illinois |
| 11 | Fred Orth | 8 | Son | — | Iowa |
| 12 | Ray Brewer | 37 | In-law | Inspector | Illinois |
| 13 | Elizabeth Brewer | 37 | Wife | Clerk | Illinois |
| 14 | Fred Melow | 32 | Head | Welder | Illinois |
| 15 | Catherine Melow | 30 | Wife | — | Illinois |
| 16 | Janice Melow | 3 | Daughter | — | Illinois |
| 17 | Charles Blend | 50 | Head | Printer | Illinois |
| 18 | Charles Blend | 21 | Son | — | Illinois |
| 19 | Adele Blend | 20 | Daughter | Clerk | Illinois |
| 20 | Marian Blend | 18 | Daughter | — | Illinois |
| 21 | John Allen | 84 | Head | — | Illinois |
| 22 | Margaret Allen THIS PERSON | 78 | Wife | — | Iowa |
| 23 | Ada Siders | 50 | Daughter | Clerk | Illinois |
| 24 | Marguerite Allen | 44 | Daughter | Clerk | Illinois |
| 25 | Donald Siders | 8 | Son | — | Illinois |
| 26 | Floyd Butts | 46 | Head | Accountant | Illinois |
| 27 | Vera Butts | 47 | Wife | — | Illinois |
| 28 | Donald Butts | 21 | Son | Inspector | Illinois |
| 29 | Donald Knight | 49 | Head | Engineer | Illinois |
| 30 | Minnie Knight | 47 | Wife | — | Illinois |
| 31 | Leanne Knight | 22 | Daughter | New Worker | Illinois |
| 32 | Arthur Hulstrunk | 49 | Head | Machinist | Illinois |
| 33 | Helen Hulstrunk | 48 | Wife | — | Illinois |
| 34 | Mary Lents | 64 | Head | — | Iowa |
| 35 | Delbert Lovelund | 37 | Son-in-law | Machinist | Illinois |
| 36 | Mildred Lovelund | 34 | Wife | — | Iowa |
| 37 | Richard Lovelund | 14 | Son | — | Illinois |
| 38 | Harold Lovelund | 7 | Son | — | Illinois |
| 39 | Fridolf Olson | 35 | Head | Draftsman | Nebraska |
| 40 | Verna Olson | 30 | Wife | — | Nebraska |
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)