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John Merrill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this John Merrill across the 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 9-person household.
Age 26
b. ~1914
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Merrill |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Supervisors District No. 1 |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Occupation | Bailiff |
| Industry | County Court |
| Class of Worker | GW |
| Hours Worked | 42 |
| Income (1939) | 1240 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Bailiff |
| Township / Ward | Supervisors District No 1 |
| Est. Birth Year | ~1914 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Oral Merrill | Son | — | 28 | ~1912 |
| Keith Merrill | Son | — | 15 | ~1925 |
| Marie Merrill | Daughter | — | 16 | ~1924 |
| Iris Merrill | Daughter | — | 4 | ~1936 |
| Viola Merrill | Spouse | — | 49 | ~1891 |
| Sarah Merrill | Daughter | — | 19 | ~1921 |
| Lanana Merrill | Daughter | — | 22 | ~1918 |
| John Merrill | Son | — | 26 | ~1914 |
| Lee Merrill | Head | — | 55 | ~1885 |
Census Appearances
1930
Maricopa, Arizona
Son, age 14
Maricopa, Arizona · implied b. ~1916 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Merrill |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Utah |
| Mother's Birthplace | Idaho |
| Can Read/Write | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Maricopa-County, Arizona
Son, age 26
Maricopa-County, Arizona · implied b. ~1914 — 9 household members
| Surname | Merrill |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Supervisors District No. 1 |
| 1935 Residence (County) | Maricopa |
| Occupation | Bailiff |
| Industry | County Court |
| Class of Worker | GW |
| Hours Worked | 42 |
| Income (1939) | 1240 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 John Merrill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Merrill
Son · 1940 · age 26 · b. ~1914 · Arizona
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Sibling
Marie Merrill
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Merrill
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Keith Merrill
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lanana Merrill
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oral Merrill
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iris Merrill
Sibling · 1940 · age 4
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-t0627-00106-00435)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Beulah Brown | 48 | Wife | — | Oklahoma |
| 42 | Quinn Brown | 19 | Son | Paper Boy | Texas |
| 43 | Minoru Ikeda | 59 | Head | Farm Laborer | Japan |
| 44 | Shizuko Ikeda | 44 | Wife | Farm Laborer | Japan |
| 45 | Tsutomu Ikeda | 28 | Son | Farm Operator | Arizona |
| 46 | Amy Ikeda | 20 | Daughter | — | Arizona |
| 47 | Katsumi Ikeda | 18 | Son | Farm Laborer | Arizona |
| 48 | Masaru Ikeda | 16 | Son | — | Arizona |
| 49 | Dorothy Ikeda | 13 | Daughter | — | Arizona |
| 50 | Tom Ikeda | 11 | Son | — | Arizona |
| 51 | Masumi Ikeda | 8 | Son | — | Arizona |
| 52 | Masayuki Ikeda | 4 | Son | — | Arizona |
| 53 | Delbert G. Mortensen | 45 | Head | Electrician | Colorado |
| 54 | Gerlanda Mortensen | 41 | Wife | — | Colorado |
| 55 | Lois Mary Mortensen | 15 | Daughter | — | Arizona |
| 56 | Andrew Mortensen | 78 | Head | — | Utah |
| 57 | Jenna C. Mortensen | 73 | Wife | — | Utah |
| 58 | Ether Mathews | 45 | Head | Station Manager | Utah |
| 59 | Lucile Mathews | 41 | Wife | — | Mexico |
| 60 | Norma Mathews | 15 | Daughter | — | California |
| 61 | Lee L. Merrill | 55 | Head | — | Utah |
| 62 | Viola Merrill | 49 | Wife | — | Arizona |
| 63 | Oral L. Merrill | 28 | Son | Truck Driver | Idaho |
| 64 | John L. Merrill THIS PERSON | 26 | Son | Bailiff | Idaho |
| 65 | Lanana Merrill | 22 | Daughter | House Work | Idaho |
| 66 | Sarah Lou Merrill | 19 | Daughter | House Work | Canada |
| 67 | Marie Merrill | 16 | Daughter | — | Idaho |
| 68 | Keith Merrill | 15 | Son | — | Idaho |
| 69 | Iris Merrill | 4 | Daughter | — | Arizona |
| 70 | Harry Ellsworth | 62 | Head | Pound Supervisor | Utah |
| 71 | Margaret M. Ellsworth | 58 | Wife | — | Utah |
| 72 | Lillian Ellsworth | 35 | Daughter | Typist | Arizona |
| 73 | Leon A. Gullien | 47 | Head | Vegetable Route | Minnesota |
| 74 | Florene Gullien | 39 | Wife | — | Arizona |
| 75 | Stanley Gullien | 19 | Son | Library Helper | Arizona |
| 76 | Leon Jr. Gullien | 14 | Son | — | Arizona |
| 77 | Virginia Gullien | 11 | Daughter | — | Arizona |
| 78 | Joan Gullien | 7 | Daughter | — | Arizona |
| 79 | Dale Gullien | 5 | Son | — | Arizona |
| 80 | Lewis H. Mayes | 51 | Head | Ranger | Texas |
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)