JF
John Frederick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bernalillo-County, New Mexico
Our Model Tree links this John Frederick across the 1920, 1930 and 1940 US Censuses in Bernalillo-County, New Mexico (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 7-person household.
Age 53
b. ~1887
Male
Head
Born: New Mexico
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bernalillo-County, New Mexico |
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | New Mexico |
| 1935 Residence (City) | Albuquerque |
| 1935 Residence (County) | Bernalillo |
| Additional Details | |
| Occupation | Pipefitter |
| Industry | Railroad Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 348 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
| Occupation | Pipefitter |
| Township / Ward | Albuquerque |
| Est. Birth Year | ~1887 |
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 |
|---|---|---|---|---|
| Rodney Ferry | Other | — | 1 | ~1939 |
| Helen Ferry | Daughter | — | 25 | ~1915 |
| Jennie Frederick | Spouse | — | 52 | ~1888 |
| Dorothy Frederick | Daughter | — | 19 | ~1921 |
| John Frederick | Head | — | 53 | ~1887 |
| John Frederick | Son | — | 10 | ~1930 |
| Helen Ferry | Other | — | 25 | ~1915 |
Census Appearances
1920
Bernalillo, New …
Head, age 33
Bernalillo, New Mexico · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | New Mexico |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Bookkeeper |
| Industry | Furniture Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
1930
Bernalillo, New …
Head, age 43
Bernalillo, New Mexico · implied b. ~1887 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | New Mexico |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Pipe fitter |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
1940
Bernalillo-County, New …
Head, age 53
Bernalillo-County, New Mexico · implied b. ~1887 — 7 household members
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | New Mexico |
| 1935 Residence (City) | Albuquerque |
| 1935 Residence (County) | Bernalillo |
| Occupation | Pipefitter |
| Industry | Railroad Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 348 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
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 Frederick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Frederick
Head · 1940 · age 53 · b. ~1887 · New Mexico
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Bernalillo-County, New Mexico
Open full size
1940 US Federal Census — Bernalillo-County, New Mexico
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02438-00916)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Oscar Pfaff | 58 | Head | Grocer | Kansas |
| 42 | Floy Pfaff | 45 | Wife | Grocer | Arkansas |
| 43 | Harold Pfaff | 18 | Son | Delivery Boy | Kansas |
| 44 | Ernest Stutz | 43 | Head | Mechanical Engineer | New Mexico |
| 45 | Ann Stutz | 38 | Wife | Office | S. Carolina |
| 46 | Sylvia Stutz | 21 | Daughter | Office | N. Carolina |
| 47 | Richard Stutz | 18 | Son | Office | N. Carolina |
| 48 | Jackie Stutz | 13 | Son | — | N. Carolina |
| 49 | Marguerite Stutz | 11 | Daughter | — | N. Carolina |
| 50 | John Frederick THIS PERSON | 53 | Head | Pipefitter | New Mexico |
| 51 | Jennie Frederick | 52 | Wife | — | New Mexico |
| 52 | Dorothy Frederick | 19 | Daughter | — | New Mexico |
| 53 | John Frederick | 10 | Son | — | New Mexico |
| 54 | Helen Ferry | 25 | Daughter | Traveling Salesman | Colorado |
| 55 | Helen Ferry | 25 | Granddaughter | — | New Mexico |
| 56 | Rodney Ferry | 1 | Grandson | — | Colorado |
| 57 | Elinor Henning | 70 | Head | — | Indiana |
| 58 | Frances Henning | 70 | Wife | — | Missouri |
| 59 | Charles Lucretia Henning | 100 | Mother | — | Virginia |
| 60 | Harry Curl | 46 | Head | Pressfeeder | Colorado |
| 61 | Emma Curl | 41 | Wife | — | Illinois |
| 62 | Harry Jr. Curl | 18 | Son | — | Colorado |
| 63 | Betty Jean Curl | 14 | Daughter | — | Colorado |
| 64 | Robert Curl | 11 | Son | — | Colorado |
| 65 | Albert Eaton | 24 | Head | Clerk | Colorado |
| 66 | Bernice Eaton | 22 | Wife | — | Colorado |
| 67 | Gary Eaton | 2 | Son | — | Colorado |
| 68 | Y. Watson Bowman | 46 | Head | Chief Clerk | Missouri |
| 69 | Martha Bowman | 48 | Wife | — | Kansas |
| 70 | Martha Bowman | 18 | Daughter | — | New Mexico |
| 71 | Jesus La Badie | 47 | Head | Carpenter | New Mexico |
| 72 | Longina La Badie | 42 | Wife | Houseworker | New Mexico |
| 73 | Rosina La Badie | 22 | Daughter | — | New Mexico |
| 74 | Roy Giepie | 41 | Head | Mechanic | Indiana |
| 75 | Virginia Giepie | 26 | Wife | — | Oklahoma |
| 76 | Robert Giepie | 7 | Son | — | New Mexico |
| 77 | Joyce Giepie | 1 | Daughter | — | New Mexico |
| 78 | Emmet Johnson | 45 | Head | Foreman, Electrical | Kentucky |
| 79 | Anna Johnson | 38 | Wife | — | Wisconsin |
| 80 | Helen Johnson | 17 | Daughter | — | New Mexico |
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)