MC
Martha Clark — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Marshall, Iowa
Our Model Tree links this Martha Clark across the 1900, 1910 and 1920 US Censuses in Marshall, Iowa (XGBoost, ~Confirmed) — first a head (b.~1843), then head of a 2-person household.
Age 77
b. ~1843
Female
Head
Born: New York
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Marshall, Iowa |
| Surname | Clark |
| Given Name | Martha J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | New York |
| Father's Birthplace | Alabama |
| Mother's Birthplace | New York |
| Additional Details | |
| Occupation | Nurse |
| Industry | Private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Nurse |
| Township / Ward | Marshalltown City |
| Est. Birth Year | ~1843 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Pearl Moon | Daughter | — | 47 | ~1873 |
| Martha Clark | Head | — | 77 | ~1843 |
Census Appearances
1900
Marshall, Iowa
Head, age 58
Marshall, Iowa · implied b. ~1842
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Clark |
| Given Name | Martha J |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | New York |
| Birth Month | Dec |
| Birth Year | 1842 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Boarding house |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1910
Marshall, Iowa
Head, age 66
Marshall, Iowa · implied b. ~1844
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Clark |
| Given Name | Martha J |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | New York |
| Children Born | 4 |
| Children Living | 3 |
| Father's Birthplace | New York |
| Mother's Birthplace | Alabama |
| Occupation | Nurse |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Marshall, Iowa
Head, age 77
Marshall, Iowa · implied b. ~1843 — 2 household members
| Surname | Clark |
| Given Name | Martha J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | New York |
| Father's Birthplace | Alabama |
| Mother's Birthplace | New York |
| Occupation | Nurse |
| Industry | Private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Martha Clark across 3 US Census years (1900, 1910 and 1920) in Marshall, Iowa, using XGBoost record linkage.
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This person
Anchor record
Martha Clark
Head · 1920 · age 77 · b. ~1843 · 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 — Marshall, Iowa
Open full size
1920 US Federal Census — Marshall, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu502unit:0487)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Elizabeth E. Hannan | 29 | — | None | Iowa |
| 52 | William L. Hannan | 8 | — | None | Iowa |
| 53 | Donald Brady | 26 | Head | Salesman | Iowa |
| 54 | Bernice Brady | 23 | Wife | Stenographer | Iowa |
| 55 | Ballaway Johnson | 50 | Head | Janitor | Virginia |
| 56 | Luella Johnson | 31 | Wife | None | Virginia |
| 57 | Wilmer S. Johnson | 10 | Son | None | Iowa |
| 58 | Charles E. Johnson | 9 | Son | None | Iowa |
| 59 | Harmon G. Johnson | 8 | Son | None | Iowa |
| 60 | Emmet Johnson | 7 | Son | None | Iowa |
| 61 | Bernice L. Johnson | 5 | Daughter | None | Iowa |
| 62 | Leroy H. Johnson | 3 | Son | None | Iowa |
| 63 | Russell H. Johnson | 1 | Son | None | Iowa |
| 64 | Marion E. Pryor | 27 | Head | Machinist | Missouri |
| 65 | Alma Pryor | 21 | Wife | None | Missouri |
| 66 | Leah M. Pryor | 1 | Daughter | None | Iowa |
| 67 | Martha J. Clark THIS PERSON | 77 | Head | Nurse | New York |
| 68 | Pearl M. Moon | 47 | Daughter | Salesman | Iowa |
| 69 | William R. Mason | 56 | Head | Real Estate | Iowa |
| 70 | Bernice Mason | 40 | Wife | Shining | Iowa |
| 71 | Ruth Mason | 14 | Daughter | Shining | Iowa |
| 72 | William S. Emrich | 67 | Head | Laborer | Ohio |
| 73 | Rosa Belle Emrich | 27 | Wife | Nurse | Iowa |
| 74 | Ruth E. Vilas | 41 | Head | Ironing | Iowa |
| 75 | Joseph Abelman | 37 | Head | Merchant | Russia |
| 76 | Kellie Abelman | 31 | Wife | None | Russia |
| 77 | Stanley Abelman | 5 | Son | None | Iowa |
| 78 | Miriam Abelman | 4 | Daughter | None | Iowa |
| 79 | Mary E. Hines | 51 | Head | Laundress | Iowa |
| 80 | Walter W. Hines | 20 | Son | Working Out | Iowa |
| 81 | Kenneth J. Hines | 17 | Son | Clerk | Iowa |
| 82 | George B. Wrighton | 38 | Head | Farmer | Iowa |
| 83 | May S. Wrighton | 23 | Wife | None | New York |
| 84 | Richard E. Wrighton | 7 | Son | None | S. Dakota |
| 85 | Ena J. Wrighton | 6 | Daughter | None | Iowa |
| 86 | Harold E. Benny | 21 | Head | Laborer | Iowa |
| 87 | Catherine E. Benny | 18 | Wife | None | Iowa |
| 88 | Maxine E. Benny | 0 | Daughter | None | Iowa |
| 89 | Henry Benny | 47 | Head | Teamster | Iowa |
| 90 | Bertha Benny | 37 | Wife | Clerk | Iowa |
| 91 | Leo Benny | 17 | Son | Typesetter | Iowa |
| 92 | John F. Dingman | 30 | Head | Salesman | Oklahoma |
| 93 | Norma M. Dingman | 28 | Wife | None | Iowa |
| 94 | Ralph F. Dingman | 7 | Son | None | Iowa |
| 95 | James E. Mcglasson | 57 | Head | Janitor | Iowa |
| 96 | Maude M. Mcglasson | 27 | Wife | Cook | England |
| 97 | Hazel Mcglasson | 27 | Roomer | Cook | Iowa |
| 98 | Nellie Mcglasson | 27 | Roomer | Waitress | Iowa |
| 99 | Agnes Berka | 25 | Roomer | Waitress | Iowa |
| 100 | John Gladwin | 24 | Head | Laborer | 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)