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James Mcdermott — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Montgomery, Ohio
Our Model Tree links this James Mcdermott across the 1910 and 1920 US Censuses in Montgomery, Ohio (XGBoost, ~Confirmed) — first a son (b.~1903), then head of a 9-person household.
Age 17
b. ~1903
Male
Son
Born: Ohio
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Montgomery, Ohio |
| Surname | McDermott |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Toolmaker |
| Industry | Sewing Machine Co |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Toolmaker |
| Township / Ward | Dayton City |
| Est. Birth Year | ~1903 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Charlotte Mcdermott | Daughter | — | 9 | ~1911 |
| James Mcdermott | Head | — | 45 | ~1875 |
| Earl Mcdermott | Son | — | 21 | ~1899 |
| James Mcdermott | Son | — | 17 | ~1903 |
| Robert Mcdermott | Son | — | 7 | ~1913 |
| Morris Mcdermott | Son | — | 14 | ~1906 |
| Hugh Mcdermott | Son | — | 18 | ~1902 |
| John Mcdermott | Son | — | 12 | ~1908 |
| Lillie Mcdermott | Spouse | — | 46 | ~1874 |
Census Appearances
1910
Montgomery, Ohio
Son, age 7
Montgomery, Ohio · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Montgomery, Ohio
Son, age 17
Montgomery, Ohio · implied b. ~1903 — 9 household members
| Surname | McDermott |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | Toolmaker |
| Industry | Sewing Machine Co |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 James Mcdermott across 2 US Census years (1910 and 1920) in Montgomery, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcdermott
Son · 1920 · age 17 · b. ~1903 · Ohio
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Sibling
Robert Mcdermott
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Mcdermott
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Morris Mcdermott
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Mcdermott
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Mcdermott
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdermott
Sibling · 1920 · age 12
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 — Montgomery, Ohio
Open full size
1920 US Federal Census — Montgomery, Ohio
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1422unit:0418)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Henry | 6 | Son | — | Ohio |
| 2 | August | 42 | Head | Fireman | Italy |
| 3 | Louisa G | 42 | Wife | — | Italy |
| 4 | Julia | 11 | Daughter | — | Ohio |
| 5 | Geneva | 10 | Daughter | — | Ohio |
| 6 | Harry Crider | 48 | Head | Foreman | Ohio |
| 7 | Mila E Crider | 45 | Wife | — | Ohio |
| 8 | Harry Ahmes | 46 | Head | Foreman | France |
| 9 | Edna Ahmes | 33 | Wife | — | Ohio |
| 10 | Lewis Ahmes | 7 | Son | — | Ohio |
| 11 | Edward Sutherland | 35 | Head | Cabinet Maker | Kentucky |
| 12 | Mary Sutherland | 35 | Wife | — | Ohio |
| 13 | Edward Sutherland | 9 | Son | — | Missouri |
| 14 | Joseph Sutherland | 7 | Son | — | Kentucky |
| 15 | Teresa Sutherland | 1 | Daughter | — | Ohio |
| 16 | Thomas Finn | 28 | Head | Blacksmith | Ohio |
| 17 | Anna Finn | 27 | Wife | — | Ohio |
| 18 | Elian Finn | 0 | Daughter | — | Ohio |
| 19 | Harry Keller | 54 | Head | Foreman | Connecticut |
| 20 | Mabel A Keller | 50 | Wife | — | Ohio |
| 21 | John Lang | 75 | Head | Milling Machine | Germany |
| 22 | Fredericka Lang | 73 | Wife | — | Germany |
| 23 | Pauline Lang | 21 | Daughter | Inspector | Indiana |
| 24 | Ralph Lang | 13 | Son | — | Ohio |
| 25 | August C Miller | 46 | Head | Polisher | Ohio |
| 26 | Ida M Miller | 36 | Wife | — | Ohio |
| 27 | Hazel Miller | 14 | Daughter | — | Ohio |
| 28 | Carl Miller | 9 | Son | — | Ohio |
| 29 | Violet Miller | 5 | Daughter | — | Ohio |
| 30 | Thelma Miller | 2 | Daughter | — | Ohio |
| 31 | Kenneth Miller | 0 | Son | — | Ohio |
| 32 | Louis D Carder | 70 | Boarder | Bench Hand | Ohio |
| 33 | Clarence J Larson | 42 | Head | Bench Hand | Ohio |
| 34 | Ida Rice | 54 | Housekeeper | Housekeeper | Ohio |
| 35 | William Kling | 61 | Head | Laborer | Germany |
| 36 | Mary Kling | 57 | Wife | — | Germany |
| 37 | August Fregin | 52 | Head | Cigar Maker | Germany |
| 38 | Otto Fregin | 50 | Brother | Foreman | Germany |
| 39 | Johanna Fregin | 48 | Sister | Cigar Maker | Germany |
| 40 | Emma Fregin | 42 | Sister | Dressmaker | Germany |
| 41 | James Mcdermott | 45 | Head | Polisher | Pennsylvania |
| 42 | Lillie Mcdermott | 46 | Wife | — | Ohio |
| 43 | Earl Mcdermott | 21 | Son | Screw Maker | Ohio |
| 44 | Hugh Mcdermott | 18 | Son | Polisher | Ohio |
| 45 | James Jr Mcdermott THIS PERSON | 17 | Son | Toolmaker | Ohio |
| 46 | Morris Mcdermott | 14 | Son | — | Ohio |
| 47 | John Mcdermott | 12 | Son | — | Ohio |
| 48 | Charlotte Mcdermott | 9 | Daughter | — | Ohio |
| 49 | Robert Mcdermott | 7 | Son | — | Ohio |
| 50 | August Drapp | 37 | Head | Tool Maker | Ohio |
Related Census Records
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)