MJ
Mary Jacobs — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Appanoose, Iowa
Our Model Tree links this Mary Jacobs across the 1920 and 1930 US Censuses in Appanoose, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 11-person household.
Age 45
b. ~1885
Female
Spouse
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Appanoose, Iowa |
| Surname | Jacobs |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Bellair Twp Pt Of |
| Est. Birth Year | ~1885 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ella Jacobs | Daughter | — | 4 | ~1926 |
| Nellie Jacobs | Daughter | — | 17 | ~1913 |
| Opel Jacobs | Daughter | — | 11 | ~1919 |
| Lenora Jacobs | Daughter | — | 6 | ~1924 |
| Wanda Jacobs | Daughter | — | 3 | ~1927 |
| Clyde Jacobs | Head | — | 48 | ~1882 |
| Bright Jacobs | Son | — | 13 | ~1917 |
| Wayne Jacobs | Son | — | 10 | ~1920 |
| Valentine Jacobs | Son | — | 8 | ~1922 |
| Clyde Jacobs | Son | — | 15 | ~1915 |
| Mary Jacobs | Spouse | — | 45 | ~1885 |
Census Appearances
1920
Appanoose, Iowa
Spouse, age 35
Appanoose, Iowa · implied b. ~1885 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Appanoose, Iowa
Spouse, age 45
Appanoose, Iowa · implied b. ~1885 — 11 household members
| Surname | Jacobs |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| 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 Jacobs across 2 US Census years (1920 and 1930) in Appanoose, Iowa, using XGBoost record linkage.
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This person
Anchor record
Mary Jacobs
Spouse · 1930 · age 45 · b. ~1885 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Appanoose, Iowa
Open full size
1930 US Federal Census — Appanoose, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel641:0073)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles W Dixon | 58 | Head | Farmer | Iowa |
| 2 | Mary A Dixon | 65 | Wife | — | Iowa |
| 3 | Maggie Vestal | 55 | Head | Farmer | Illinois |
| 4 | Virginia Vestal | 19 | Daughter | — | Iowa |
| 5 | Hugh Vandermark | 36 | Son | Miner | Illinois |
| 6 | Henry Vandermark | 34 | Son | Miner | Illinois |
| 7 | Harry Vandermark | 26 | Son | — | Iowa |
| 8 | Anna M Vandermark | 4 | Daughter | — | Iowa |
| 9 | John W Vestal | 75 | Boarder | — | Missouri |
| 10 | George Troha | 44 | Head | Farmer | Yugoslavia |
| 11 | Tressie Troha | 36 | Wife | — | Yugoslavia |
| 12 | John Troha | 18 | Son | Laborer | Yugoslavia |
| 13 | Joe Troha | 16 | Son | — | Iowa |
| 14 | Mary Troha | 14 | Daughter | — | Iowa |
| 15 | Leslie Troha | 12 | Son | — | Iowa |
| 16 | Rosa Troha | 11 | Daughter | — | Iowa |
| 17 | Millie Troha | 9 | Daughter | — | Iowa |
| 18 | Arthur Houser | 39 | Head | Farmer | Iowa |
| 19 | Mary Houser | 34 | Wife | — | Iowa |
| 20 | Raymond Houser | 12 | Son | — | Iowa |
| 21 | Eddie Houser | 7 | Son | — | Iowa |
| 22 | Robert Justice | 54 | Head | Farmer | Missouri |
| 23 | Frank Freeman | 55 | Head | Farmer | Illinois |
| 24 | Martha Freeman | 52 | Wife | — | England |
| 25 | Clyde G Jacobs | 48 | Head | Farmer | Nebraska |
| 26 | Mary E Jacobs THIS PERSON | 45 | Wife | — | Iowa |
| 27 | Nellie Jacobs | 17 | Daughter | — | Iowa |
| 28 | Clyde Jacobs | 15 | Son | — | Iowa |
| 29 | Bright Jacobs | 13 | Son | — | Iowa |
| 30 | Opel Jacobs | 11 | Daughter | — | Iowa |
| 31 | Wayne Jacobs | 10 | Son | — | Iowa |
| 32 | Valentine Jacobs | 8 | Son | — | Iowa |
| 33 | Lenora Jacobs | 6 | Daughter | — | Iowa |
| 34 | Ella Jacobs | 4 | Daughter | — | Iowa |
| 35 | Wanda Jacobs | 3 | Daughter | — | Iowa |
| 36 | Carl Evins | 26 | Head | Farmer | Iowa |
| 37 | Grace Evins | 25 | Wife | — | Iowa |
| 38 | Bobbie Evins | 4 | Son | — | Iowa |
| 39 | Jesse A Hoover | 41 | Head | Farmer | Iowa |
| 40 | Mary A Hoover | 38 | Wife | — | Iowa |
| 41 | Robert Hoover | 18 | Son | — | Iowa |
| 42 | Ray Hoover | 16 | Son | — | Iowa |
| 43 | Nell Hoover | 14 | Son | — | Iowa |
| 44 | Eva Hoover | 68 | Mother | — | Iowa |
| 45 | William H John | 55 | Head | Farmer | Iowa |
| 46 | Mary E John | 55 | Wife | — | Iowa |
| 47 | Daley S John | 31 | Son | Miner | Iowa |
| 48 | Rollie W John | 23 | Son | Miner | Iowa |
| 49 | Dave Mccarty | 34 | Head | Farmer | Iowa |
| 50 | Alonzo Bumgarner | 72 | Head | Farmer | Ohio |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)