RM
Richard Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · York-County, Pennsylvania
Our Model Tree links this Richard Martin across the 1930 and 1940 US Censuses in York-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 11-person household.
Age 15
b. ~1925
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | York-County, Pennsylvania |
| Surname | Martin |
| Given Name | Richard S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Jackson Twp |
| 1935 Residence (County) | York |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Jackson Twp |
| Est. Birth Year | ~1925 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Charmaine Martin | Daughter | — | 2 | ~1938 |
| Vivian Martin | Daughter | — | 19 | ~1921 |
| Howard Martin | Head | — | 64 | ~1876 |
| Annie Martin | Other | — | 24 | ~1916 |
| Richard Martin | Son | — | 15 | ~1925 |
| Howard Martin | Son | — | 17 | ~1923 |
| Glenn Martin | Son | — | 11 | ~1929 |
| Clair Martin | Son | — | 22 | ~1918 |
| Ralph Martin | Son | — | 13 | ~1927 |
| Nathaniel Martin | Son | — | 25 | ~1915 |
| Nettie Martin | Spouse | — | 57 | ~1883 |
Census Appearances
1930
York, Pennsylvania
Son, age 5
York, Pennsylvania · implied b. ~1925 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Richard S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
York-County, Pennsylvania
Son, age 15
York-County, Pennsylvania · implied b. ~1925 — 11 household members
| Surname | Martin |
| Given Name | Richard S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Jackson Twp |
| 1935 Residence (County) | York |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Richard Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Martin
Son · 1940 · age 15 · b. ~1925 · Pennsylvania
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Sibling
Nathaniel Martin
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenn Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vivian Martin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charmaine Martin
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clair Martin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Martin
Sibling · 1940 · age 13
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 — York-County, Pennsylvania
Open full size
1940 US Federal Census — York-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03642-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Howard F. Martin | 64 | Head | Operator | Pennsylvania |
| 2 | Nettie M. Martin | 57 | Wife | Housekeeper | Pennsylvania |
| 3 | Nathaniel G. Martin | 25 | Son | Laborer | Pennsylvania |
| 4 | Annie R. Martin | 24 | Daughter-in-law | Housekeeper | Pennsylvania |
| 5 | Charmaine M. Martin | 2 | Daughter | — | Pennsylvania |
| 6 | Clair F. Martin | 22 | Son | Laborer | Pennsylvania |
| 7 | Vivian A. Martin | 19 | Daughter | Housekeeper | Pennsylvania |
| 8 | Howard F. Jr. Martin | 17 | Son | — | Pennsylvania |
| 9 | Richard S. Martin THIS PERSON | 15 | Son | — | Pennsylvania |
| 10 | Ralph J. Martin | 13 | Son | — | Pennsylvania |
| 11 | Glenn W. Martin | 11 | Son | — | Pennsylvania |
| 12 | Paul L. Harlacker | 45 | Head | Laborer | Pennsylvania |
| 13 | Elsie R. Harlacker | 32 | Wife | Housekeeper | Pennsylvania |
| 14 | Philip D. Harlacker | 2 | Son | — | Pennsylvania |
| 15 | Latimer R. Stambaugh | 63 | Head | Operator | Pennsylvania |
| 16 | Clara R. Stambaugh | 61 | Wife | Housekeeper | Pennsylvania |
| 17 | John Emig | 51 | Head | Laborer | Pennsylvania |
| 18 | Gertrude K. Emig | 48 | Wife | Housekeeper | Pennsylvania |
| 19 | Seright N. Harbold | 47 | Head | Manager | Pennsylvania |
| 20 | Hilda E. Harbold | 40 | Wife | Housekeeper | Pennsylvania |
| 21 | Mary E. Harbold | 20 | Daughter | Housekeeper | Pennsylvania |
| 22 | George R. Harbold | 16 | Son | Laborer | Pennsylvania |
| 23 | Eugene S. Harbold | 15 | Son | — | Pennsylvania |
| 24 | Howard W. Harbold | 11 | Son | — | Pennsylvania |
| 25 | Dorothy L. Harbold | 9 | Daughter | — | Pennsylvania |
| 26 | Richard L. Harbold | 6 | Son | — | Pennsylvania |
| 27 | Hazel M. Harbold | 3 | Daughter | — | Pennsylvania |
| 28 | Robert L. Brimmer | 16 | Lodger | — | Pennsylvania |
| 29 | Emory A. Altland | 38 | Head | Laborer | Pennsylvania |
| 30 | Mary C. Altland | 32 | Wife | Housekeeper | Pennsylvania |
| 31 | Ethel R. Altland | 15 | Daughter | — | Pennsylvania |
| 32 | David E. Altland | 13 | Son | — | Pennsylvania |
| 33 | Dorothy M. Altland | 7 | Daughter | — | Pennsylvania |
| 34 | Gene B. Altland | 5 | Son | — | Pennsylvania |
| 35 | Gordon E. Altland | 3 | Son | — | Pennsylvania |
| 36 | Ervin D. Martin | 57 | Head | Operator | Pennsylvania |
| 37 | Sanford P. Martin | 19 | Son | Laborer | Pennsylvania |
| 38 | Evelene Martin | 18 | Daughter | Housekeeper | Pennsylvania |
| 39 | Ernest W. Martin | 10 | Son | — | Pennsylvania |
| 40 | Melvin J. Schrum | 41 | Head | Manager | Pennsylvania |
Related Census Records
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)