MC
Martha Cook — 1920 US Census Record
Model Tree available1920 United States Federal Census · Scott, Iowa
Our Model Tree links this Martha Cook across the 1920, 1930 and 1940 US Censuses in Scott, Iowa (XGBoost, ~Confirmed), with identified parents Henry & Henry — first a daughter (b.~1917), then head of a 4-person household.
Age 3
b. ~1917
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Scott, Iowa |
| Surname | Cook |
| Given Name | Martha J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | none |
| Can Read | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Henry Cook | Head | — | 40 | ~1880 |
| Martha Cook | Daughter | — | 3 | ~1917 |
| May Cook | Spouse | — | 35 | ~1885 |
| Lena Cook | Daughter | — | 5 | ~1915 |
Census Appearances
1920
Scott, Iowa
Daughter, age 3
Scott, Iowa · implied b. ~1917 — 4 household members
| Surname | Cook |
| Given Name | Martha J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Scott, Iowa
Daughter, age 13
Scott, Iowa · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooke |
| Given Name | Martha Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Scott-County, Iowa
Daughter, age 23
Scott-County, Iowa · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooke |
| Given Name | Martha Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Davenport |
| 1935 Residence (County) | Scott |
| Highest Grade | Hs 4 |
| 1935 Residence | same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Cook (~0.92 confidence) and father Henry Cooke (~0.92 confidence) and mother May Cook (~0.92 confidence) and mother May Cooke (~0.92 confidence) and father Harry Cooke (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Cook
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Henry Cooke
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
May Cook
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
May Cooke
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Harry Cooke
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
Martha Cook
Daughter · 1920 · age 3 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Lena Cook
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Scott, Iowa
Open full size
1920 US Federal Census — Scott, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu512unit:0472)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Le Roy Beck | 10 | Son | None | Iowa |
| 2 | Ethel Beck | 9 | Daughter | None | Iowa |
| 3 | Marie Beck | 7 | Daughter | None | Iowa |
| 4 | John Maly | 57 | Head | Mechanic | Germany |
| 5 | Andy Maly | 26 | Son | Salesman | Iowa |
| 6 | Joseph Maly | 19 | Son | Delivery | Iowa |
| 7 | Sophie Maly | 13 | Daughter | None | Iowa |
| 8 | Julius Jehring | 52 | Head | Porter | Iowa |
| 9 | Clara Jehring | 59 | Wife | None | Wisconsin |
| 10 | John Jehring | 88 | Father | None | Germany |
| 11 | Henry C. Cook | 40 | Head | Fireman | Illinois |
| 12 | May Cook | 35 | Wife | None | Illinois |
| 13 | Lena M. Cook | 5 | Daughter | None | Illinois |
| 14 | Martha J. Cook THIS PERSON | 3 | Daughter | None | Illinois |
| 15 | Edward Meinert | 39 | Head | Cement Fin. | Iowa |
| 16 | Dorothea Meinert | 40 | Wife | Laundress | Iowa |
| 17 | Milo G. Meinert | 16 | Son | Truck Driver | Iowa |
| 18 | Herbert H. Meinert | 14 | Son | None | Iowa |
| 19 | Dorothea C. Meinert | 11 | Daughter | None | Iowa |
| 20 | Norman G. Meinert | 9 | Daughter | None | Iowa |
| 21 | Edward A. Meinert | 6 | Son | None | Iowa |
| 22 | Donald Meinert | 1 | Son | None | Iowa |
| 23 | Geo. Pritchard | 54 | Head | Helper | England |
| 24 | Minnie Pritchard | 50 | Wife | None | Iowa |
| 25 | Grace Pritchard | 11 | Daughter | None | Iowa |
| 26 | Abbott Pritchard | 8 | Son | None | Iowa |
| 27 | May Pritchard | 19 | Daughter | Seamstress | Iowa |
| 28 | Fred Lapper | 49 | Head | Cigar Maker | Germany |
| 29 | Minnie Lapper | 45 | Wife | None | Germany |
| 30 | Lillie Lapper | 18 | Daughter | None | Iowa |
| 31 | Alfred Wright | 67 | Head | Meat Inspector | England |
| 32 | Eleanor Wright | 74 | Sister | None | England |
| 33 | Martha Head | 70 | Friend | None | England |
| 34 | Howard V. Reynolds | 34 | Head | Salesman | Illinois |
| 35 | Lillian Reynolds | 25 | Wife | None | Nebraska |
| 36 | Barbara J. Reynolds | 0 | Daughter | None | Iowa |
| 37 | Joseph Bartosch | 46 | Head | Laborer | Austria |
| 38 | Agata Bartosch | 36 | Wife | Housekeeping | Bavaria |
| 39 | Arthur Bartosch | 13 | Son | None | Wisconsin |
| 40 | Ernest Bartosch | 11 | Son | None | Iowa |
| 41 | Herbert Bartosch | 9 | Son | None | Iowa |
| 42 | Edmund Bartosch | 7 | Son | None | Iowa |
| 43 | Richard Bartosch | 5 | Son | None | Iowa |
| 44 | Roxana Kimberlin | 30 | Head | Farming | Illinois |
| 45 | Emil Knuth | 25 | Boarder | Farm Hand | Iowa |
| 46 | Frank Fischlein | 51 | Head | Carpenter | Germany |
| 47 | Margaret Fischlein | 47 | Wife | None | Germany |
| 48 | Frank Fischlein | 24 | Son | Helper | Wisconsin |
| 49 | Annie Fischlein | 22 | Daughter | Packer | Iowa |
| 50 | Joseph Fischlein | 18 | Son | Helper | Wisconsin |
Pedigree Summary
Martha + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)