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Harry Martin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Washington, Maryland
Our Model Tree links this Harry Martin across the 1920, 1930 and 1940 US Censuses in Washington, Maryland (XGBoost, ~Confirmed), with identified parents Louise & Harry — first a son (b.~1920), then head of a 5-person household.
Age 10
b. ~1920
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Maryland |
| Surname | Martin |
| Given Name | Harry F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Keedysville Town |
| Est. Birth Year | ~1920 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Francis Martin | Daughter | — | 12 | ~1918 |
| Jennette Martin | Daughter | — | 4 | ~1926 |
| Harry Martin | Head | — | 39 | ~1891 |
| Sarah Martin | Other | — | 30 | ~1900 |
| Harry Martin | Son | — | 10 | ~1920 |
Census Appearances
1920
Washington, Maryland
Son, age
Washington, Maryland · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harry F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| 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 10
Washington, Maryland · implied b. ~1920 — 5 household members
| Surname | Martin |
| Given Name | Harry F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Head, age 20
Washington-County, Maryland · implied b. ~1920 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Hagerstown |
| 1935 Residence (County) | Washington |
| Occupation | Carpenter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 200 |
| Highest Grade | H-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: mother Louise Martin (~0.92 confidence) and father Harry Martin (~0.92 confidence) and father Harry Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Louise Martin
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Harry Martin
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Harry Martin
b. ~1891
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harry Martin
Son · 1930 · age 10 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
Francis Martin
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jennette Martin
Sibling · 1930 · age 4
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
1930 US Federal Census — Washington, Maryland
Open full size
1930 US Federal Census — Washington, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus881unit:0741)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry L. Elliott | 42 | Head | Agent + Telegrapher | Maryland |
| 2 | Meda G. Elliott | 24 | Wife-H | — | Maryland |
| 3 | Meda L. Elliott | 1 | Daughter | — | Maryland |
| 4 | John H. Summers | 55 | Head | Brakeman | Pennsylvania |
| 5 | Mary C. Summers | 54 | Wife-H | — | Maryland |
| 6 | Michael A. Huffer | 29 | Head | Dispatcher | Maryland |
| 7 | Marie R. Huffer | 39 | Wife-H | — | Maryland |
| 8 | Davis, Alvin V. Huffer | 73 | Step Father | Water Pumper | Maryland |
| 9 | Frank C. Baker | 59 | Head | Farm Overseer | Maryland |
| 10 | Emma F. Baker | 53 | Wife-H | — | West Virginia |
| 11 | Hattie Fisher | 55 | Head-H | — | Maryland |
| 12 | Vera P. Fisher | 32 | Daughter | Typist | Maryland |
| 13 | Richard H. Fisher | 19 | Son | Laborer | Maryland |
| 14 | Patterson Roulette | 31 | Head | Manager | Maryland |
| 15 | Leoda Roulette | 34 | Wife-H | — | Maryland |
| 16 | William F. Roulette | 8 | Son | — | Maryland |
| 17 | Fred E. Eichelberger | 17 | Brother-in-law | Laborer | Maryland |
| 18 | Chester H. Leatherman | 37 | Head | Produce Dealer | Maryland |
| 19 | Orpha J. Leatherman | 33 | Wife-H | Music Teacher | Maryland |
| 20 | Charles A. Leatherman | 15 | Son | — | Maryland |
| 21 | Cathryne G. Leatherman | 13 | Daughter | — | Maryland |
| 22 | Eva M. Wyand | 56 | Head-H | — | Maryland |
| 23 | Robert R. Wyand | 22 | Son | Salesman | Maryland |
| 24 | Albert C. Kefauver | 54 | Head | Farmer | Maryland |
| 25 | Nora A. Kefauver | 51 | Wife-H | — | Maryland |
| 26 | Millard D. Kefauver | 24 | Son | Checker + Clerk | Maryland |
| 27 | Mary V. Kefauver | 17 | Daughter | — | Maryland |
| 28 | Aaron D. Snyder | 78 | Head | — | Maryland |
| 29 | Annie E. Snyder | 77 | Wife | — | Maryland |
| 30 | Anita Snyder | 34 | Daughter-H | Agent | Maryland |
| 31 | Harry L. Martin | 39 | Head | Commercial Traveler | Maryland |
| 32 | Sarah L. Martin | 30 | Wife-H | — | Maryland |
| 33 | Francis M. Martin | 12 | Daughter | — | Pennsylvania |
| 34 | Harry F. Martin THIS PERSON | 10 | Son | — | Maryland |
| 35 | Jennette L. Martin | 4 | Daughter | — | Maryland |
| 36 | John G. Flook | 48 | Head | Overseer | Maryland |
| 37 | Inez A. Flook | 33 | Wife-H | — | Maryland |
| 38 | Martin L. Flook | 79 | Father | — | Maryland |
| 39 | Charles L. Flook | 14 | Nephew | — | Maryland |
| 40 | Emma M. Green | 52 | Servant | House Keeper | Maryland |
| 41 | Guy P. Poffenberger | 49 | Head | — | Maryland |
| 42 | Sophia I. Poffenberger | 45 | Sister | Operator | Maryland |
| 43 | James W. Baxter | 76 | Head | — | West Virginia |
| 44 | Leona J. Baxter | 64 | Wife-H | — | Maryland |
| 45 | Martin L. Gouff | 79 | Head | Miller | Maryland |
| 46 | Fanny M. Gouff | 71 | Wife-H | — | Maryland |
| 47 | Bessie M. Stine | 47 | Step Daughter | — | Maryland |
| 48 | Howard G. Lynch | 51 | Head | Barber | Maryland |
| 49 | Mattie E. Lynch | 53 | Wife-H | — | Virginia |
| 50 | Howard B. Lynch | 26 | Son | Barber | Maryland |
Pedigree Summary
Harry + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)