MC
Martha Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Okaloosa-County, Florida
Our Model Tree links this Martha Cooper across the 1930 and 1940 US Censuses in Okaloosa-County, Florida (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 6-person household.
Age 14
b. ~1926
Female
Daughter
Born: Florida
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Okaloosa-County, Florida |
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Holt Town |
| 1935 Residence (County) | Okaloosa |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | Holt Town |
| Est. Birth Year | ~1926 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Talmadge Cooper | Son | — | 11 | ~1929 |
| Martha Cooper | Daughter | — | 14 | ~1926 |
| Shirley Cooper | Daughter | — | 2 | ~1938 |
| Dorothy Cooper | Daughter | — | 19 | ~1921 |
| Grady Cooper | Son | — | 16 | ~1924 |
| Thomas Cooper | Head | — | 46 | ~1894 |
Census Appearances
1930
Okaloosa, Florida
Daughter, age 4
Okaloosa, Florida · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Okaloosa-County, Florida
Daughter, age 14
Okaloosa-County, Florida · implied b. ~1926 — 6 household members
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Holt Town |
| 1935 Residence (County) | Okaloosa |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
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 Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Cooper
Daughter · 1940 · age 14 · b. ~1926 · Florida
★ You are viewing this record
Sibling
Grady Cooper
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Cooper
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Cooper
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Talmadge Cooper
Sibling · 1940 · age 11
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
1940 US Federal Census — Okaloosa-County, Florida
Open full size
1940 US Federal Census — Okaloosa-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00602-00165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kate B. Adams | 35 | Head | Service Station | Florida |
| 2 | Helen L. Adams | 15 | Daughter | — | Florida |
| 3 | Betty J. Adams | 11 | Daughter | — | Florida |
| 4 | Louis H. Jr. Adams | 6 | Son | — | Florida |
| 5 | William A. Finch | 64 | Head | — | Alabama |
| 6 | Mary A. Finch | 56 | Wife | Laundry | Georgia |
| 7 | Mary A. Finch | 27 | Daughter | Ser. Clerk | Alabama |
| 8 | James Finch | 19 | Son | — | Alabama |
| 9 | Elizabeth Finch | 49 | Sister | Laundry | Alabama |
| 10 | Curtis B. Brown | 29 | Head | Watchman | Massachusetts |
| 11 | Bernice Brown | 26 | Wife | — | Florida |
| 12 | Sallie Brown | 4 | Daughter | — | Florida |
| 13 | Sallie Harrison | 55 | Mother-in-law | — | Florida |
| 14 | Iseta G. Jordon | 46 | Head | Foreman | Florida |
| 15 | Noma Jordon | 40 | Wife | — | Florida |
| 16 | Jasper D. Renfroe | 82 | Father-in-law | — | Alabama |
| 17 | L. Lonnie Byrnes | 60 | Head | Clerk | Alabama |
| 18 | Carl J. Senterfitt | 34 | Head | Clerk | Florida |
| 19 | John M. Senterfitt | 39 | Head | Clerk | Florida |
| 20 | Gimpie Senterfitt | 37 | Wife | Clerk | Florida |
| 21 | Helen Senterfitt | 12 | Daughter | — | Florida |
| 22 | Lloyd L. Senterfitt | 10 | Son | — | Florida |
| 23 | John M. Jr. Senterfitt | 7 | Son | — | Florida |
| 24 | Susie Bishop | 22 | Sister-in-law | Housekeeper | Florida |
| 25 | Rappard W. Heath | 60 | Head | Clerk | North Carolina |
| 26 | Thomas D. Cooper | 46 | Head | Laborer | Florida |
| 27 | Dorothy Cooper | 19 | Daughter | — | Florida |
| 28 | Grady Cooper | 16 | Son | — | Florida |
| 29 | Martha Cooper THIS PERSON | 14 | Daughter | — | Florida |
| 30 | Talmadge Cooper | 11 | Son | — | Florida |
| 31 | Shirley Cooper | 2 | Daughter | — | Florida |
| 32 | Burton B. Holbrook | 74 | Head | Servant | Michigan |
| 33 | Mary Holbrook | 67 | Wife | — | Indiana |
| 34 | Ebbie L. Mccleland | 32 | Head | Wooding | Alabama |
| 35 | Lucille Mccleland | 18 | Wife | — | Alabama |
| 36 | Lillie A. Enders | 68 | Head | — | Florida |
| 37 | Walker Parker | 48 | Head | Truck Driver | Alabama |
| 38 | Jessie Parker | 32 | Wife | — | Florida |
| 39 | Madge Parker | 18 | Daughter | Teacher | Florida |
| 40 | William J. Parker | 12 | Son | — | Florida |
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)