JP
John Palmer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this John Palmer across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 3-person household.
Age 72
b. ~1868
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Palmer |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Catoctin District Election District #6 |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | Catoctin District Election District 6 |
| Est. Birth Year | ~1868 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Palmer | Head | — | 72 | ~1868 |
| Bruce Palmer | Son | — | 39 | ~1901 |
| Martha Palmer | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Frederick, Maryland
Head, age 52
Frederick, Maryland · implied b. ~1868 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Palmer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Head, age 63
Frederick, Maryland · implied b. ~1867 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Palmer |
| Given Name | John E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 27 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farming |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Head, age 72
Frederick-County, Maryland · implied b. ~1868 — 3 household members
| Surname | Palmer |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Catoctin District Election District #6 |
| 1935 Residence (County) | Frederick |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Palmer 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 Palmer
Head · 1940 · age 72 · b. ~1868 · Maryland
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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 — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00741)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | A. Woodrow Kline | 6 | son | — | Maryland |
| 42 | Franklin E. Kline | 2 | son | 0 | Maryland |
| 43 | Hubert J. Kline | 0 | son | 0 | Maryland |
| 44 | David R. Frey | 71 | Head | — | Maryland |
| 45 | Rosie C. Frey | 53 | wife | — | Maryland |
| 46 | Alvin E. Sensenbaugh | 69 | Head | Farmer | Maryland |
| 47 | Nora R. Sensenbaugh | 66 | wife | — | Maryland |
| 48 | Hubert G. Wolfe | 41 | Head | Laborer | Maryland |
| 49 | Della M. Wolfe | 31 | wife | — | Maryland |
| 50 | Mary J. Wolfe | 13 | daughter | — | Maryland |
| 51 | Josephine Wolfe | 10 | daughter | — | Maryland |
| 52 | Katherine R. Wolfe | 6 | daughter | — | Maryland |
| 53 | Melvin V. Wolfe | 4 | son | — | Maryland |
| 54 | Robert W. Maugans | 21 | Head | Laborer | Maryland |
| 55 | John R. Maugans | 79 | Father | — | Maryland |
| 56 | Cristie V. Maugans | 60 | Mother | — | Pennsylvania |
| 57 | Myrtle V. Maugans | 27 | sister | — | Maryland |
| 58 | Martha V. Wolfe | 6 | niece | — | Maryland |
| 59 | J. Peter Frey | 29 | Head | Machine Operator | Maryland |
| 60 | Grace L. Frey | 24 | wife | — | Maryland |
| 61 | J. Richard Frey | 2 | son | 0 | Maryland |
| 62 | Curtis Kline | 59 | Head | Farmer | Maryland |
| 63 | Clemmie E. Kline | 56 | wife | — | Maryland |
| 64 | Evelyn E. Stottlemeyer | 13 | granddaughter | — | Maryland |
| 65 | Glenn J. Kline | 35 | Head | Laborer | Maryland |
| 66 | Adam B. Martin | 63 | Head | Carpenter | Maryland |
| 67 | Alice V. Martin | 58 | wife | — | Maryland |
| 68 | Cecil R. Martin | 24 | son | Laborer | Maryland |
| 69 | Arthur B. Martin | 20 | son | Laborer | Maryland |
| 70 | Samuel H. Blickenstaff | 34 | Head | Truck Driver | Maryland |
| 71 | Robert L. Blickenstaff | 9 | son | — | Maryland |
| 72 | John E. Palmer THIS PERSON | 72 | Head | Farmer | Maryland |
| 73 | Martha E. Palmer | 70 | wife | — | Maryland |
| 74 | Bruce B. Palmer | 39 | son | — | Maryland |
| 75 | Amy R. Kline | 50 | Head | — | Maryland |
| 76 | Emma J. Kline | 50 | wife | — | Maryland |
| 77 | Evelyn J. Kline | 26 | daughter | — | Maryland |
| 78 | J. Roy B. Kline | 16 | son | Laborer | Maryland |
| 79 | Elsie R. Kline | 14 | daughter | — | Maryland |
| 80 | John R. Kline | 22 | Head | Farmer | Maryland |
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)