JB
John Bailey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Bailey across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Charles & William — first a son (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Bailey |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ann Bailey | Daughter | — | 21 | ~1919 |
| Charles Bailey | Head | — | 62 | ~1878 |
| Charles Bailey | Son | — | 36 | ~1904 |
| John Bailey | Son | — | 30 | ~1910 |
| Thomas Bailey | Son | — | 27 | ~1913 |
Census Appearances
1920
Baltimore, Maryland
Son, age 9
Baltimore, Maryland · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 19
Baltimore, Maryland · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Chauffeur |
| Industry | Truck |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 30
Baltimore-City-County, Maryland · implied b. ~1910 — 5 household members
| Surname | Bailey |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Class of Worker | 0 |
| Highest Grade | No 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 Bailey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Bailey (~0.92 confidence) and father William Bailey (~0.92 confidence) and mother Maggie Bailey (~0.92 confidence) and mother Maggie Bailey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Bailey
b. ~1878
Source father
● Household
· direct · ~0.92
Father
William Bailey
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Maggie Bailey
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Maggie Bailey
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Bailey
Son · 1940 · age 30 · b. ~1910 · Maryland
★ You are viewing this record
Sibling
Charles Bailey
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Bailey
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Bailey
Sibling · 1940 · age 21
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-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01520-00525)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary M Hovermale | 12 | Daughter | — | West Virginia |
| 42 | Kenneth O Hovermale | 10 | Son | — | West Virginia |
| 43 | Herbert L Hovermale | 9 | Son | — | New York |
| 44 | Jerry R Hovermale | 5 | Son | — | Maryland |
| 45 | Leroy Hinkel | 41 | Head | Slate Roofer | Pennsylvania |
| 46 | Cora Hinkel | 37 | Wife | — | Pennsylvania |
| 47 | John M Kenny | 58 | Head | Tailor | Pennsylvania |
| 48 | Catherine M Kenny | 56 | Wife | — | Maryland |
| 49 | Philip S Albaugh | 23 | Head | Baker | Maryland |
| 50 | Isabel N Albaugh | 18 | Wife | Saleswoman | Maryland |
| 51 | Arthur Deets | 51 | Head | Windowwasher | Pennsylvania |
| 52 | Ann Baker | 29 | Housekeeper | Waitress | Pennsylvania |
| 54 | Nellie V Howard | 38 | Head | Practical Nurse | Maryland |
| 55 | Donald F Esslinger | 19 | Son | Assembler | Maryland |
| 56 | Francis B Jr Howard | 7 | Son | — | Maryland |
| 57 | Joseph J Winkler | 70 | Head | — | Maryland |
| 58 | Virginia C Winkler | 64 | Wife | — | Pennsylvania |
| 59 | Charles Conway | 40 | Head | House Painter | Maryland |
| 60 | Charles J Conway | 19 | Son | House Painter | Maryland |
| 61 | Willie V Pist | 61 | Head | — | Maryland |
| 62 | Abram T Daughtrey | 69 | Cousin | — | Virginia |
| 63 | Marian T Daughtrey | 56 | Cousin | — | Maryland |
| 64 | Joseph J Wallace | 47 | Lodger | Machinist | Maryland |
| 65 | Jesse Kehler | 25 | Head | Truck Driver | Pennsylvania |
| 66 | Rita Kehler | 22 | Wife | — | Pennsylvania |
| 67 | Patricia A Kehler | 3 | Daughter | 0 | Maryland |
| 68 | Mary C Kehler | 2 | Daughter | 0 | Maryland |
| 69 | Priscilla Kehler | 1 | Daughter | 0 | Maryland |
| 70 | Walter B Blatchley | 28 | Son-in-law | Cutter | Maryland |
| 71 | Mary E Bonneville | 51 | Head | Power Machine Operator | Maryland |
| 72 | Helen D Horton | 29 | Daughter | Power Machine Operator | Maryland |
| 73 | Robert Mehermann | 23 | Head | Crane Operator | Pennsylvania |
| 74 | Louise Mehermann | 28 | Wife | — | Pennsylvania |
| 75 | Betty L Mehermann | 1 | Daughter | 0 | Pennsylvania |
| 76 | Charles S Bailey | 62 | Head | Delivery Clerk | Maryland |
| 77 | Charles L Jr Bailey | 36 | Son | Record Clerk | Maryland |
| 78 | John J Bailey THIS PERSON | 30 | Son | — | Maryland |
| 79 | Thomas E Bailey | 27 | Son | Pressman'S Helper | Maryland |
| 80 | Ann M Bailey | 21 | Daughter | Auditing Clerk | Maryland |
Pedigree Summary
John + 3 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)