FN
Florence Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this Florence Nelson across the 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Female
Daughter
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Nelson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | C.S.D 2 |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Highest Grade | C 1 |
| 1935 Residence | Same house |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Csd 2 |
| Est. Birth Year | ~1920 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Rosemary Nelson | Daughter | — | 10 | ~1930 |
| Maxine Nelson | Daughter | — | 12 | ~1928 |
| Carolyn Nelson | Daughter | — | 7 | ~1933 |
| Melba Nelson | Daughter | — | 17 | ~1923 |
| Eloise Nelson | Daughter | — | 15 | ~1925 |
| Florence Nelson | Daughter | — | 20 | ~1920 |
| Barbara Nelson | Daughter | — | 2 | ~1938 |
| George Nelson | Head | — | 53 | ~1887 |
| Morris Nelson | Son | — | 23 | ~1917 |
| Rose Nelson | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Maricopa, Arizona
Daughter, age 10
Maricopa, Arizona · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Arizona |
| Mother's Birthplace | Arizona |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Maricopa-County, Arizona
Daughter, age 20
Maricopa-County, Arizona · implied b. ~1920 — 10 household members
| Surname | Nelson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | C.S.D 2 |
| 1935 Residence (County) | Maricopa |
| Highest Grade | C 1 |
| 1935 Residence | Same house |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Florence Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Florence Nelson
Daughter · 1940 · age 20 · b. ~1920 · Arizona
★ You are viewing this record
Sibling
Morris Nelson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melba Nelson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maxine Nelson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosemary Nelson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eloise Nelson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Nelson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolyn Nelson
Sibling · 1940 · age 7
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 — Maricopa-County, Arizona
Open full size
1940 US Federal Census — Maricopa-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00108-00156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marilyn Preston | 0 | Daughter | — | Arizona |
| 42 | John H. Preston | 26 | Head | Laborer | Kentucky |
| 43 | Callie Preston | 44 | Wife | Caliner | Kentucky |
| 44 | George B. Nelson | 53 | Head | Carpenter | Arizona |
| 45 | Rose Nelson | 46 | Wife | — | Arizona |
| 46 | Morris C. Nelson | 23 | Son | — | Hawaii |
| 47 | Florence Nelson THIS PERSON | 20 | Daughter | — | Arizona |
| 48 | Melba Nelson | 17 | Daughter | — | Arizona |
| 49 | Eloise Nelson | 15 | Daughter | — | Arizona |
| 50 | Maxine Nelson | 12 | Daughter | — | Arizona |
| 51 | Rosemary Nelson | 10 | Daughter | — | Arizona |
| 52 | Carolyn Nelson | 7 | Daughter | — | Arizona |
| 53 | Barbara Jean Nelson | 2 | Daughter | — | Arizona |
| 54 | Robert Hall | 67 | Head | — | Michigan |
| 55 | David Nelson | 49 | Head | Supervisor | Arizona |
| 56 | Hazel Nelson | 44 | Wife | — | Arizona |
| 57 | Thais Nelson | 19 | Daughter | Usherette | Arizona |
| 58 | Calvin Nelson | 15 | Son | — | Arizona |
| 59 | Norman Nelson | 11 | Son | — | Arizona |
| 60 | Maria Nelson | 5 | Daughter | — | Arizona |
| 61 | Verveen Brown | 21 | Daughter | Waitress | Arizona |
| 62 | Nicholas Brown | 2 | Grandson | — | Arizona |
| 63 | Edwin C. Heggerston | 46 | Head | Proprietor | Minnesota |
| 64 | Ben Hageback | 29 | Boarder | Driver | Missouri |
| 65 | Irma Hageback | 20 | Sister-in-law | — | Arizona |
| 66 | James Walls | 40 | Head | Foreman | Tennessee |
| 67 | Velma Walls | 36 | Wife | — | Tennessee |
| 68 | Charles M. Boyd | 64 | Father-in-law | — | Tennessee |
| 69 | Cecil J. Illaus | 39 | Head | Deputy Game Warden | Kansas |
| 70 | Ola Illaus | 39 | Wife | — | Arkansas |
| 71 | William Jay Illaus | 5 | Son | — | Arizona |
| 72 | Deborah Holt | 61 | Mother-in-law | — | Arkansas |
| 73 | John Maddux | 44 | Head | — | Virginia |
| 74 | Elsa Maddux | 34 | Wife | — | Germany |
| 75 | Walter Stone | 62 | Head | Proprietor | Illinois |
| 76 | Emma L. Stone | 50 | Wife | — | Nebraska |
| 77 | Hewlett King | 40 | Head | — | Mississippi |
| 78 | Stella King | 37 | Wife | Housekeeper | Arkansas |
| 79 | Elbert Machmer | 37 | Head | Salesman | Kansas |
| 80 | Irene Machmer | 37 | Wife | — | Colorado |
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)