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Harry Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Harry Martin across the 1920, 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed), with identified parents Harry & Lulu — first a son (b.~1913), then head of a 9-person household.
Age 27
b. ~1913
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Martin |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | 60 |
| Industry | Farm hand |
| Class of Worker | Farming |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | 60 |
| Township / Ward | Election District 15 |
| Est. Birth Year | ~1913 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Daisy Martin | Daughter | — | 10 | ~1930 |
| Mary Martin | Daughter | — | 13 | ~1927 |
| Charlotte Martin | Daughter | — | 18 | ~1922 |
| Doris Martin | Daughter | — | 15 | ~1925 |
| Lula Martin | Head | — | 50 | ~1890 |
| Glen Martin | Son | — | 20 | ~1920 |
| Elvin Martin | Son | — | 22 | ~1918 |
| Harry Martin | Son | — | 27 | ~1913 |
| Wilbur Martin | Son | — | 24 | ~1916 |
Census Appearances
1920
Washington, Maryland
Son, age 5
Washington, Maryland · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harry J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Washington, Maryland
Son, age 16
Washington, Maryland · implied b. ~1914 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Son, age 27
Washington-County, Maryland · implied b. ~1913 — 9 household members
| Surname | Martin |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (County) | Washington |
| Occupation | 60 |
| Industry | Farm hand |
| Class of Worker | Farming |
| Highest Grade | Hs 4 |
| 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 Harry Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Martin (~0.92 confidence) and mother Lulu Martin (~0.92 confidence) and father Joseph Martin (~0.92 confidence) and mother Nettie Martin (~0.92 confidence) and mother Lula Martin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Martin
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Lulu Martin
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Joseph Martin
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Nettie Martin
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Lula Martin
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Martin
Son · 1940 · age 27 · b. ~1913 · Maryland
★ You are viewing this record
Sibling
Daisy Martin
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glen Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Martin
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elvin Martin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Martin
Sibling · 1940 · age 15
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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01562-00523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leslie P. Jr. Suder | 1 | SON | — | Maryland |
| 2 | Roger Pindindell|Pindindall | 52 | Head | 44 | Maryland |
| 3 | Mary S. Pindindell|Pindindall | 63 | Sister | — | Maryland |
| 4 | John H. Mumma | 56 | Head | 75 | Maryland |
| 5 | Bessie M. Mumma | 48 | Wife | — | Pennsylvania |
| 6 | John R. Mumma | 13 | Son | — | Maryland |
| 7 | Lorin R. Mumma | 15 | Son | — | Maryland |
| 8 | Helen L. Mumma | 14 | Daughter | — | Maryland |
| 9 | Bury L. Mumma | 12 | Son | — | Maryland |
| 10 | Virginia S. Mumma | 9 | Daughter | — | Maryland |
| 11 | Madeline L. Mumma | 7 | Daughter | — | Maryland |
| 12 | J. Bloom Evers | 50 | Head | 50 | Pennsylvania |
| 13 | Elizabeth V. Evers | 48 | Wife | — | Pennsylvania |
| 14 | J. Albert Funkhouser | 71 | Head | 60 | Maryland |
| 15 | Sarah C. Funkhouser | 72 | Wife | — | Maryland |
| 16 | George A. Siles | 64 | Head | 60 | Pennsylvania |
| 17 | Mattie C. Siles | 46 | Wife | — | Maryland |
| 18 | Ancil G. Siles | 18 | Son | 60 | Maryland |
| 19 | Phyllis M. Siles | 15 | Daughter | — | Maryland |
| 20 | Edna L. Siles | 14 | Daughter | — | Maryland |
| 21 | Alila F. Siles | 7 | Daughter | — | Maryland |
| 22 | Steven C. Mandala | 46 | Head | 60 | Maryland |
| 23 | Anna L. Eubanks | 33 | Housekeeper | — | South Carolina |
| 24 | Louis H. Legendre | 74 | Head | — | France |
| 25 | Eugene Legendre | 37 | Son | 20 | Maryland |
| 26 | George Legendre | 32 | Son | 40 | Pennsylvania |
| 27 | Jacob E. Krontz | 61 | Head | 40 | Maryland |
| 28 | Sarah E. Krontz | 49 | Wife | — | Maryland |
| 29 | Geneva L. Krontz | 32 | Daughter | 30 | Maryland |
| 30 | John L. Krontz | 30 | Son | 40 | Maryland |
| 31 | Thomas E. Krontz | 28 | Son | 56 | Maryland |
| 32 | Lula E. Martin | 50 | Head | 60 | Maryland |
| 33 | Harry E. Martin THIS PERSON | 27 | Son | 60 | Maryland |
| 34 | Wilbur L. Martin | 24 | Son | 50 | Maryland |
| 35 | Elvin C. Martin | 22 | Son | 10 | Maryland |
| 36 | Glen F. Martin | 20 | Son | 60 | Maryland |
| 37 | Charlotte E. Martin | 18 | Daughter | 46 | Maryland |
| 38 | Doris R. Martin | 15 | Daughter | — | Maryland |
| 39 | Mary C. Martin | 13 | Daughter | — | Maryland |
| 40 | Daisy M. Martin | 10 | Daughter | — | Maryland |
Pedigree Summary
Harry + 7 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)