JL
John Logan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cecil-County, Maryland
Our Model Tree links this John Logan across the 1920, 1930 and 1940 US Censuses in Cecil-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.
Age 67
b. ~1873
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cecil-County, Maryland |
| Surname | Logan |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District #5 Northeast Dist 2 Prec |
| 1935 Residence (County) | Cecil |
| Additional Details | |
| Occupation | Merchant |
| Industry | Grocery Store |
| Class of Worker | OA |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Merchant |
| Township / Ward | Election District 5 Northeast Dist 2 Prec |
| Est. Birth Year | ~1873 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alma Logan | Daughter | — | 21 | ~1919 |
| Ethel Logan | Daughter | — | 38 | ~1902 |
| John Logan | Head | — | 67 | ~1873 |
| Helen Logan | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Cecil, Maryland
Head, age 48
Cecil, Maryland · implied b. ~1872 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Logan |
| Given Name | John P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Grocer |
| Industry | Retail |
| Class of Worker | Oa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | F |
| Birth State | Maryland |
| Birth Country | United States |
| Year of Naturalization | O |
| Birthplace (normalized) | maryland |
1930
Cecil, Maryland
Head, age 56
Cecil, Maryland · implied b. ~1874 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Logan |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 25 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Cecil-County, Maryland
Head, age 67
Cecil-County, Maryland · implied b. ~1873 — 4 household members
| Surname | Logan |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District #5 Northeast Dist 2 Prec |
| 1935 Residence (County) | Cecil |
| Occupation | Merchant |
| Industry | Grocery Store |
| Class of Worker | OA |
| Highest Grade | 7 |
| 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 John Logan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Logan
Head · 1940 · age 67 · b. ~1873 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cecil-County, Maryland
Open full size
1940 US Federal Census — Cecil-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01545-00409)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A. Stoppel | 8 | Son | — | Maryland |
| 2 | Mary J. Stoppel | 7 | Daughter | — | Maryland |
| 3 | Joe Ann Stoppel | 4 | Daughter | — | Maryland |
| 4 | Ernest C. Oldham | 22 | Head | Laborer | Maryland |
| 5 | Leora E. Oldham | 18 | Wife | — | Maryland |
| 6 | Herman D. Walker | 34 | Head | Carpenter | Penn |
| 7 | Marian D. Walker | 28 | Wife | — | Maryland |
| 8 | Carl D. Walker | 9 | Son | — | Maryland |
| 9 | Clarence C. Logan | 57 | Head | Fireman | Maryland |
| 10 | Dora S. A. Logan | 51 | Wife | — | Maryland |
| 11 | Harry E. Logan | 25 | Son | Chauffeur | Maryland |
| 12 | Adolph H. Logan | 20 | Son | Carpenter Helper | Maryland |
| 13 | George H. A. Gray | 62 | Head | Painter | Maryland |
| 14 | Ernest O. Whitehead | 45 | Head | Carpenter | Maryland |
| 15 | Jean A. Whitehead | 13 | Son | — | Maryland |
| 16 | Bernice Mary A. Whitehead | 55 | Sister | — | Maryland |
| 17 | Mark O. Kauffman | 40 | Head | Junk Smith | Maryland |
| 18 | Rebecca O. Kauffman | 37 | Wife | — | Maryland |
| 19 | Mark Jr. Kauffman | 11 | Son | — | Maryland |
| 20 | John F. Logan THIS PERSON | 67 | Head | Merchant | Maryland |
| 21 | Helen E. Logan | 60 | Wife | — | Maryland |
| 22 | Ethel M. Logan | 38 | Daughter | — | Maryland |
| 23 | Alma E. Logan | 21 | Daughter | — | Pennsylvania |
| 24 | Thompson B. Red | 73 | Head | Farmer | Maryland |
| 25 | Nellie E. Red | 71 | Wife | — | Maryland |
| 26 | Howard Young | 34 | Head | Foreman | Virginia |
| 27 | Ruth A. Young | 30 | Wife | — | Maryland |
| 28 | Marie E. Young | 12 | Daughter | — | Maryland |
| 29 | Albert W. Young | 9 | Son | — | Maryland |
| 30 | Bernard J. John | 26 | Lodger | Carpenter | Penn |
| 31 | Goldie G. John | 23 | Lodger | — | Pennsylvania |
| 32 | Janet L. John | 2 | Lodger | — | Pennsylvania |
| 33 | Herbert E. Simpers | 21 | Head | Merchant | Maryland |
| 34 | Elizabeth H. Simpers | 21 | Wife | — | Maryland |
| 35 | Arthur H. Isaacs | 35 | Head | Laborer | Maryland |
| 36 | Mary M. Isaacs | 38 | Wife | — | Maryland |
| 37 | Wilson H. Isaacs | 18 | Son | New Worker | Maryland |
| 38 | Doris M. Isaacs | 15 | Daughter | — | Maryland |
| 39 | Lorraine Isaacs | 11 | Daughter | — | Maryland |
| 40 | Joseph E. Benjamin | 67 | Head | Merchant | 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)