CM
Charles Martin — 1920 US Census Record
Model Tree available1920 United States Federal Census · Harford, Maryland
Our Model Tree links this Charles Martin across the 1920, 1930 and 1940 US Censuses in Harford, Maryland (XGBoost, ~Confirmed), with identified parents Frank & Anna — first a son (b.~1908), then head of a 9-person household.
Age 12
b. ~1908
Male
Son
Born: Maryland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Harford, Maryland |
| Surname | Martin |
| Given Name | Charles J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | District 3 Precinct 4 |
| Est. Birth Year | ~1908 |
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 1920 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Mildred Martin | Daughter | — | 17 | ~1903 |
| Katharine Martin | Daughter | — | 9 | ~1911 |
| Elizabeth Martin | Daughter | — | 7 | ~1913 |
| Frank Martin | Head | — | 54 | ~1866 |
| James Martin | Son | — | 27 | ~1893 |
| Elwood Martin | Son | — | 14 | ~1906 |
| Arthur Martin | Son | — | 19 | ~1901 |
| Charles Martin | Son | — | 12 | ~1908 |
| Anna Martin | Spouse | — | 43 | ~1877 |
Census Appearances
1920
Harford, Maryland
Son, age 12
Harford, Maryland · implied b. ~1908 — 9 household members
| Surname | Martin |
| Given Name | Charles J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Son, age 23
Harford, Maryland · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Charlie |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Dairy farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Harford-County, Maryland
Head, age 32
Harford-County, Maryland · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Calvin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | 1st Election District / Abingdon |
| 1935 Residence (County) | Harford |
| Occupation | Carpenter |
| Industry | Own business |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 450 |
| Highest Grade | C 2 |
| 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 Charles Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Martin (~0.92 confidence) and mother Anna Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Martin
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Anna Martin
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Martin
Son · 1920 · age 12 · b. ~1908 · Maryland
★ You are viewing this record
Sibling
James Martin
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Martin
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elwood Martin
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Martin
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katharine Martin
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Martin
Sibling · 1920 · age 19
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
1920 US Federal Census — Harford, Maryland
Open full size
1920 US Federal Census — Harford, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu675unit:0288)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph R. Lackay | 40 | Son | Carpenter | Maryland |
| 2 | H. Jennie Grafton | 61 | Head | Farmer | Maryland |
| 3 | Sidnie M. Jones | 60 | Sister | Partner | Maryland |
| 4 | Calvin R. Jones | 59 | Brother in law | Dairyman | Delaware |
| 5 | John Meyer | 60 | Hired man | Laborer | Germany |
| 6 | John W. Robinson | 54 | Head | Farmer | Maryland |
| 7 | Maude Robinson | 26 | Wife | — | Maryland |
| 8 | James C. Johnson | 72 | Cousin | Laborer | Maryland |
| 9 | William J. Rogers | 75 | Head | Farmer | Maryland |
| 10 | Annette Rogers | 58 | Wife | — | Maryland |
| 11 | Howard S. Mitchell | 43 | Head | Laborer | Maryland |
| 12 | Jennie Mitchell | 43 | Wife | — | Maryland |
| 13 | James P. Monks | 49 | Head | Farmer | Maryland |
| 14 | Rosa M. Monks | 43 | Wife | — | Maryland |
| 15 | Mildred J. Monks | 20 | Daughter | — | Maryland |
| 16 | Elizabeth M. Monks | 14 | Daughter | — | Maryland |
| 17 | Ruth E. Monks | 11 | Daughter | — | Maryland |
| 18 | Lucille Monks | 4 | Daughter | — | Maryland |
| 19 | Lavinia Grafton | 45 | Head | — | Maryland |
| 20 | John S. Grafton | 24 | Son | Farmer | Maryland |
| 21 | Howard W. Martin | 43 | Head | Farmer | Maryland |
| 22 | Hester M. Martin | 45 | Wife | — | Pennsylvania |
| 23 | Alberta Martin | 13 | Daughter | — | Maryland |
| 24 | Hollis Martin | 8 | Son | — | Maryland |
| 25 | Thomas E. Pyle | 37 | Cousin | Laborer | Maryland |
| 26 | Frank Martin | 54 | Head | Farmer | Maryland |
| 27 | Anna G. Martin | 43 | Wife | — | Maryland |
| 28 | James L. Martin | 27 | Son | Laborer | Maryland |
| 29 | Arthur F. Martin | 19 | Son | Laborer | Maryland |
| 30 | Mildred A. Martin | 17 | Daughter | — | Maryland |
| 31 | Elwood J. Martin | 14 | Son | — | Maryland |
| 32 | Charles J. Martin THIS PERSON | 12 | Son | — | Maryland |
| 33 | Katharine Martin | 9 | Daughter | — | Maryland |
| 34 | Elizabeth Martin | 7 | Daughter | — | Maryland |
| 35 | Charles G. Daughton | 31 | Head | Laborer | Maryland |
| 36 | Helen L. Daughton | 27 | Wife | — | Maryland |
| 37 | Helen P. Daughton | 5 | Daughter | — | Maryland |
| 38 | Charles Daughton | 2 | Son | — | Maryland |
| 39 | Tony Grafton | 50 | Head | Carpenter | Maryland |
| 40 | Esther Grafton | 22 | Wife | — | Maryland |
| 41 | Dorothy Grafton | 4 | Daughter | — | Maryland |
| 42 | Virginia Grafton | 3 | Daughter | — | Maryland |
| 43 | Ruth Grafton | 0 | Daughter | — | Maryland |
| 44 | John Kurtz | 36 | Head | Farmer | Pennsylvania |
| 45 | Bessie C. Kurtz | 33 | Wife | — | Maryland |
| 46 | John G. Kurtz | 10 | Son | — | Maryland |
| 47 | Jane Lee Kurtz | 4 | Daughter | — | Maryland |
| 48 | Priscilla O. Gibson | 72 | Head | Farmer | Maryland |
| 49 | Adah S. Gibson | 35 | Daughter | — | Maryland |
| 50 | Howard W. Gibson | 33 | Son | Partner | Maryland |
Related Census Records
Pedigree Summary
Charles + 6 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)