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John Grace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Coconino-County, Arizona
Our Model Tree links this John Grace across the 1930 and 1940 US Censuses in Coconino-County, Arizona (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Coconino-County, Arizona |
| Surname | Grace |
| Given Name | John Howard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Williams City |
| Additional Details | |
| Highest Grade | No 5 |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Williams City |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nancy Grace | Daughter | — | 9 | ~1931 |
| Rose Grace | Spouse | — | 47 | ~1893 |
| Rose Grace | Daughter | — | 5 | ~1935 |
| William Grace | Son | — | 18 | ~1922 |
| Robert Grace | Son | — | 15 | ~1925 |
| William Grace | Head | — | 52 | ~1888 |
| John Grace | Son | — | 12 | ~1928 |
Census Appearances
1930
Coconino, Arizona
Son, age 1
Coconino, Arizona · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grace |
| Given Name | John H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Coconino-County, Arizona
Son, age 12
Coconino-County, Arizona · implied b. ~1928 — 7 household members
| Surname | Grace |
| Given Name | John Howard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Williams City |
| Highest Grade | No 5 |
| 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 John Grace across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Grace
Son · 1940 · age 12 · b. ~1928 · Arizona
★ You are viewing this record
Sibling
Robert Grace
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Grace
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Grace
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Grace
Sibling · 1940 · age 18
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 — Coconino-County, Arizona
Open full size
1940 US Federal Census — Coconino-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00101-00561)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Watson | 1 | son | — | Arizona |
| 42 | E. E. Metzger | 41 | Head | Saw Mill | Wisconsin |
| 43 | Francis Metzger | 30 | wife | Auto Court | Wisconsin |
| 44 | Arthur Metzger | 4 | son | — | Arizona |
| 45 | Paul Metzger | 4 | son | — | Arizona |
| 46 | Eddie Hofmeyer | 30 | Head | Retail Grocery | Arizona |
| 47 | Ailene Hofmeyer | 25 | wife | — | Louisiana |
| 48 | Edward Jr. Hofmeyer | 1 | son | — | Arizona |
| 49 | Art Bowie | 28 | Head | Teacher | Pennsylvania |
| 50 | Catherine Bowie | 20 | wife | — | Arizona |
| 51 | Edward Sr. Hofmeyer | 68 | Head | — | Missouri |
| 52 | Matilda Hofmeyer | 67 | wife | — | Missouri |
| 53 | C. M. Owen | 76 | Head | — | Kansas |
| 54 | Ida V. Owen | 79 | wife | — | Ohio |
| 55 | Harry Owen | 47 | son | W.P.A. Project | Kansas |
| 56 | Ida Owen | 45 | daughter | — | Kansas |
| 57 | Lewis G. Dump | 36 | Head | Proprietor | Missouri |
| 58 | Laura G. Dump | 37 | wife | Bookkeeper | North Dakota |
| 59 | Jack Sitta | 15 | Stepson | — | North Dakota |
| 60 | Paul F. Barr | 31 | Head | Operator | Indiana |
| 61 | Neva Barr | 26 | wife | — | Kansas |
| 62 | H. A. Randall | 41 | Head | Assistant Supervisor | Arizona |
| 63 | Ida M. Randall | 31 | wife | — | Arizona |
| 64 | Robert A. Randall | 3 | son | — | New Mexico |
| 65 | Mary Clark Steenson | 60 | Head | Chamber Of Commerce | Illinois |
| 66 | Charlotte Steenson | 29 | daughter | Public High School | Montana |
| 67 | Catherine A. Steenson | 25 | daughter | — | Arizona |
| 68 | William W. Sr. Grace | 52 | Head | Barber Shop | Illinois |
| 69 | Rose Marie Grace | 47 | wife | — | Illinois |
| 70 | William W. Jr. Grace | 18 | son | Service Station | Texas |
| 71 | Robert Lee Grace | 15 | son | — | California |
| 72 | John Howard Grace THIS PERSON | 12 | son | — | Arizona |
| 73 | Nancy E. Grace | 9 | daughter | — | Oklahoma |
| 74 | Rose Marie Grace | 5 | daughter | — | Arizona |
| 75 | George J. Robinson | 68 | Head | — | Michigan |
| 76 | Bertha Robinson | 61 | wife | — | Michigan |
| 77 | Grace Mcdougall | 47 | daughter | — | Michigan |
| 78 | Minnie Watson | 60 | Head | Public Library | New York |
| 79 | Grace Tyler Cook | 34 | Head | Telephone Operator | West Virginia |
| 80 | Edwin Aubrey Cook | 7 | son | — | Hawaii |
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)