MK
Mary Kelley — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allamakee, Iowa
Our Model Tree links this Mary Kelley across the 1920, 1930 and 1940 US Censuses in Allamakee, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 3-person household.
Age 43
b. ~1877
Female
Spouse
Born: Iowa
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allamakee, Iowa |
| Surname | Kelley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Lafayette Township |
| Est. Birth Year | ~1877 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Kelley | Son | — | 15 | ~1905 |
| Clarence Kelley | Son | — | 15 | ~1905 |
| Mary Kelley | Spouse | — | 43 | ~1877 |
Census Appearances
1920
Allamakee, Iowa
Spouse, age 43
Allamakee, Iowa · implied b. ~1877 — 3 household members
| Surname | Kelley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Allamakee, Iowa
Spouse, age 53
Allamakee, Iowa · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Allamakee-County, Iowa
Other, age 63
Allamakee-County, Iowa · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Lafayette twp |
| 1935 Residence (County) | Allamakee |
| Highest Grade | H 2 |
| 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 Mary Kelley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kelley
Spouse · 1920 · age 43 · b. ~1877 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Allamakee, Iowa
Open full size
1920 US Federal Census — Allamakee, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu476unit:0947)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Kelley THIS PERSON | 43 | Wife | None | Iowa |
| 2 | Joseph G. Kelley | 15 | Son | None | Iowa |
| 3 | Clarence Kelley | 15 | Son | None | Iowa |
| 4 | William F. Manton | 66 | Head | Farmer | Iowa |
| 5 | Ellen Manton | 56 | Wife | None | Iowa |
| 6 | Mary Manton | 33 | Daughter | None | Iowa |
| 7 | Joseph Manton | 31 | Son | Farmer | Iowa |
| 8 | Thomas Manton | 29 | Son | Ins. Agent | Iowa |
| 9 | Martin Manton | 26 | Son | Farm Laborer | Iowa |
| 10 | John W. Manton | 21 | Son | Farm Laborer | Iowa |
| 11 | Kathryn Manton | 19 | Daughter | School Teacher | Iowa |
| 12 | Veronica E. Manton | 14 | Daughter | None | Iowa |
| 13 | James W. Spons | 43 | Head | Farmer | Iowa |
| 14 | Martha C. Spons | 37 | Wife | None | Iowa |
| 15 | Lillian D. Spons | 17 | Daughter | None | Iowa |
| 16 | Harold R. Spons | 15 | Son | None | Iowa |
| 17 | Annie M. Spons | 13 | Daughter | None | Iowa |
| 18 | James L. Spons | 11 | Son | None | Iowa |
| 19 | Blanche M. Spons | 9 | Daughter | None | Iowa |
| 20 | Alice M. Spons | 5 | Daughter | None | Iowa |
| 21 | Alfred A. Spons | 5 | Son | None | Iowa |
| 22 | Thomas M. Spons | 3 | Son | None | Iowa |
| 23 | Russell R. Spons | 1 | Son | None | Iowa |
| 24 | Daniel Spons | 27 | Head | Farm Laborer | Wisconsin |
| 25 | Ada M. Spons | 19 | Wife | None | Iowa |
| 26 | Racheal Spons | 54 | Mother | None | Iowa |
| 27 | Clarence Knickerbocker | 27 | Head | Farm Laborer | Iowa |
| 28 | Rosie Knickerbocker | 27 | Wife | None | Iowa |
| 29 | Henry A. Knickerbocker | 4 | Son | None | Iowa |
| 30 | P. J. M. Knickerbocker | 2 | Daughter | None | Iowa |
| 31 | John W. Spons | 36 | Head | Farmer | Iowa |
| 32 | Maud M. Spons | 37 | Wife | None | Iowa |
| 33 | Lenora M. Spons | 9 | Daughter | None | Iowa |
| 34 | Dorothy L. Spons | 6 | Daughter | None | Iowa |
| 35 | Alfred W. Spons | 3 | Son | None | Iowa |
| 36 | Dila M. Spons | 2 | Daughter | None | Iowa |
| 37 | Clifford Fortwine | 16 | Step-son | None | Iowa |
| 38 | Mollie Madden | 46 | Head | Farmer | Iowa |
| 39 | Michael Madden | 41 | Brother | Farmer | Iowa |
| 40 | Bridget Madden | 36 | Sister | None | Iowa |
| 41 | Fred Madden | 45 | Brother | Farm Laborer | Iowa |
| 42 | Thomas H. Whalen | 48 | Head | Farmer | Iowa |
| 43 | Kathryn T. Whalen | 49 | Wife | None | Iowa |
| 44 | Joseph Whalen | 16 | Son | None | Iowa |
| 45 | Robert Whalen | 7 | Son | None | Iowa |
| 46 | George M. Mobey | 30 | Head | Farmer | Indiana |
| 47 | Lucy Mobey | 24 | Wife | None | Iowa |
| 48 | Myrl G. Mobey | 5 | Son | None | Iowa |
| 49 | Douglas D. Mobey | 3 | Son | None | Iowa |
| 50 | Joe B. Mobey | 1 | Son | None | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)