JC
John Coyle — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this John Coyle across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 14-person household.
Age 15
b. ~1925
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Coyle |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2 |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Highest Grade | G 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 2 |
| Est. Birth Year | ~1925 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Coyle | Son | — | 17 | ~1923 |
| Eleanor Coyle | Daughter | — | 2 | ~1938 |
| Nathan Coyle | Son | — | ~1940 | |
| Thelma Coyle | Daughter | — | 7 | ~1933 |
| Robert Coyle | Son | — | 13 | ~1927 |
| Mitchell Coyle | Head | — | 48 | ~1892 |
| Eleanor Coyle | Spouse | — | 38 | ~1902 |
| Elizabeth Coyle | Daughter | — | 12 | ~1928 |
| David Coyle | Son | — | 8 | ~1932 |
| Gordon Coyle | Son | — | 10 | ~1930 |
| John Coyle | Son | — | 15 | ~1925 |
| Naomi Coyle | Daughter | — | 16 | ~1924 |
| Florence Coyle | Daughter | — | 6 | ~1934 |
| William Baxter | Other | — | 73 | ~1867 |
Census Appearances
1930
Baltimore, Maryland
Son, age 5
Baltimore, Maryland · implied b. ~1925 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coyle |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 15
Baltimore-County, Maryland · implied b. ~1925 — 14 household members
| Surname | Coyle |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2 |
| 1935 Residence (County) | Baltimore |
| Highest Grade | G 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 John Coyle across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Coyle
Son · 1940 · age 15 · b. ~1925 · Maryland
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Sibling
Naomi Coyle
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Coyle
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Coyle
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nathan Coyle
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Coyle
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Coyle
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Coyle
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Coyle
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Coyle
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Coyle
Sibling · 1940 · age 13
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 — Baltimore-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01503-00652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | David Fathe | 14 | son | — | Maryland |
| 42 | Charles Fathe | 12 | son | — | Maryland |
| 43 | Earl Riddell | 24 | son-in-law | Operator | Maryland |
| 44 | Nancy Riddell | 19 | daughter | — | Maryland |
| 45 | Earl Riddell | 1 | grandson | — | Maryland |
| 46 | Mitchell Coyle | 48 | head | Labor | Kentucky |
| 47 | Eleanor Coyle | 38 | wife | — | Maryland |
| 48 | James Coyle | 17 | son | Labor | Maryland |
| 49 | Naomi Coyle | 16 | daughter | — | Maryland |
| 50 | John Coyle THIS PERSON | 15 | son | — | Maryland |
| 51 | Robert Coyle | 13 | son | — | Maryland |
| 52 | Elizabeth Coyle | 12 | daughter | — | Maryland |
| 53 | Gordon Coyle | 10 | son | — | Maryland |
| 54 | David Coyle | 8 | son | — | Maryland |
| 55 | Thelma Coyle | 7 | daughter | — | Maryland |
| 56 | Florence Coyle | 6 | daughter | — | Maryland |
| 57 | Eleanor Coyle | 2 | daughter | — | Maryland |
| 58 | Nathan Coyle | 0 | son | — | Maryland |
| 59 | William Baxter | 73 | lodger | — | Maryland |
| 60 | Peter Moran | 72 | head | — | Maryland |
| 61 | Elizabeth Osbourn | 67 | sister | — | Maryland |
| 62 | Irvin Moran | 52 | brother | Labor | Maryland |
| 63 | Richard Jones | 75 | head | Labor | Maryland |
| 64 | Helena Jones | 70 | wife | — | Maryland |
| 65 | Harry Workman | 47 | head | Car Service | Maryland |
| 66 | Bessie Workman | 44 | wife | — | Maryland |
| 67 | Charles Workman | 18 | son | Clerk | Maryland |
| 68 | Janet Workman | 10 | daughter | — | Maryland |
| 69 | Sophia Smith | 77 | mother-in-law | — | Maryland |
| 70 | Albert Sipes | 70 | head | Labor | Maryland |
| 71 | Sarah Sipes | 71 | wife | — | Maryland |
| 72 | William Lutz | 55 | head | Gardener | Maryland |
| 73 | Ella Lutz | 53 | wife | — | Maryland |
| 74 | Ross Crooks | 42 | head | Labor | Maryland |
| 75 | Gertrude Crooks | 42 | wife | — | Maryland |
| 76 | Ross Crooks | 18 | son | Labor | Maryland |
| 77 | Stewart Gorsuch | 35 | head | Chauffeur | Maryland |
| 78 | Ruth Gorsuch | 29 | wife | — | Maryland |
| 79 | Ruth Euler | 63 | head | — | Maryland |
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)