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Marion Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harford-County, Maryland
Our Model Tree links this Marion Martin across the 1920, 1930 and 1940 US Censuses in Harford-County, Maryland (XGBoost, ~Confirmed), with identified parents George & Beatrice — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harford-County, Maryland |
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Third District |
| 1935 Residence (County) | Harford |
| Additional Details | |
| Occupation | Helper |
| Industry | Stock Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 768 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Helper |
| Township / Ward | Third District |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Marion Martin | Son | — | 22 | ~1918 |
| George Martin | Son | — | 29 | ~1911 |
| Milton Martin | Son | — | 17 | ~1923 |
| Angela Martin | Daughter | — | 26 | ~1914 |
| Eugene Martin | Other | — | 55 | ~1885 |
| Margaret Martin | Spouse | — | 60 | ~1880 |
| Cornelia Martin | Daughter | — | 24 | ~1916 |
| George Martin | Head | — | 66 | ~1874 |
Census Appearances
1920
Harford, Maryland
Son, age
Harford, Maryland · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marion |
| 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
Harford, Maryland
Son, age 11
Harford, Maryland · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marion H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Harford-County, Maryland
Son, age 22
Harford-County, Maryland · implied b. ~1918 — 8 household members
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Third District |
| 1935 Residence (County) | Harford |
| Occupation | Helper |
| Industry | Stock Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 768 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Marion Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Martin (~0.92 confidence) and mother Beatrice Martin (~0.92 confidence) and mother Margaret Martin (~0.92 confidence) and mother Margaret Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Martin
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Beatrice Martin
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Margaret Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Margaret Martin
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion Martin
Son · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Cornelia Martin
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Martin
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angela Martin
Sibling · 1940 · age 26
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 — Harford-County, Maryland
Open full size
1940 US Federal Census — Harford-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01551-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosemary Misk | 7 | Boarder | — | Maryland |
| 2 | Linwood Misk | 7 | Boarder | — | Maryland |
| 3 | Alice K. Watson | 73 | Head | House Keeper | Maryland |
| 4 | Sarah M. Watson | 67 | Sister | Asst House Keeper | Maryland |
| 5 | Rebecca N. Watson | 61 | Sister | Asst House Keeper | Maryland |
| 6 | James O. Watson | 59 | Head | Operator | Maryland |
| 7 | Blanche Watson | 57 | Wife | House Wife | Maryland |
| 8 | James O. Watson | 24 | Son | Fireman | Maryland |
| 9 | Roen E. Phipps | 22 | Head | Laborer | North Carolina |
| 10 | Jaynell Phipps | 18 | Wife | House Wife | North Carolina |
| 11 | Jackey D. Phipps | 1 | Son | — | North Carolina |
| 12 | Arthur Johnson | 33 | Head | Butler | Maryland |
| 13 | Birdie Johnson | 31 | Wife | Cook | Maryland |
| 14 | Elizabeth Johnson | 15 | Daughter | Nurse | Maryland |
| 15 | Dorothy Johnson | 12 | Daughter | — | Maryland |
| 16 | Franklin Blades | 33 | Head | Designer | Maryland |
| 17 | Gertrude Blades | 32 | Wife | House Wife | Rhode Island |
| 18 | Joyce Blades | 9 | Daughter | — | Maryland |
| 19 | Fitzhugh Binegar | 38 | Head | Laborer | Maryland |
| 20 | Ruth Binegar | 28 | Wife | House Wife | Maryland |
| 21 | Junior Binegar | 7 | Son | — | Maryland |
| 22 | Gertrude Binegar | 5 | Daughter | — | Maryland |
| 23 | Rosemary Binegar | 1 | Daughter | — | Maryland |
| 24 | George W. Martin | 66 | Head | Operator | Maryland |
| 25 | Margaret Martin | 60 | Wife | House Wife | Maryland |
| 26 | George J. Martin | 29 | Son | Manager | Maryland |
| 27 | Angela Martin | 26 | Daughter | Asst House Keeper | Maryland |
| 28 | Cornelia Martin | 24 | Daughter | Asst House Keeper | Maryland |
| 29 | Marion Martin THIS PERSON | 22 | Son | Helper | Maryland |
| 30 | Milton W. Martin | 17 | Son | — | Maryland |
| 31 | Eugene F. Martin | 55 | Brother | Laborer | Maryland |
| 32 | John M. Denison | 44 | Head | Manager | Maryland |
| 33 | Marjorie Denison | 36 | Wife | House Wife | New York |
| 34 | Daphne Denison | 2 | Daughter | — | Maryland |
| 35 | John Binegar | 22 | Hired man | Laborer | North Carolina |
| 36 | Frederick Boole | 72 | Head | Operator | Germany |
| 37 | Caroline Boole | 62 | Wife | House Wife | Germany |
| 38 | William Boole | 29 | Son | Laborer | Maryland |
| 39 | Carl Boole | 27 | Son | Laborer | Maryland |
| 40 | Lena Plum | 67 | Sister in Law | Asst House Keeper | Germany |
Pedigree Summary
Marion + 4 siblings
Gen 1 · 4 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)