JD
James Day — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this James Day across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents George & James — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Day |
| Given Name | James E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Spreader Helper |
| Industry | Mullins Shirt Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 760 |
| Highest Grade | H-1 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Spreader Helper |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1919 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Annette Day | Head | — | 40 | ~1900 |
| James Day | Son | — | 21 | ~1919 |
| Robert Day | Son | — | 20 | ~1920 |
| William Day | Son | — | 17 | ~1923 |
Census Appearances
1920
Baltimore, Maryland
Son, age 1
Baltimore, Maryland · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Jas. E. Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 21
Baltimore-City-County, Maryland · implied b. ~1919 — 4 household members
| Surname | Day |
| Given Name | James E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Spreader Helper |
| Industry | Mullins Shirt Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 760 |
| Highest Grade | H-1 |
| 1935 Residence | Maryland |
| 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 James Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Day (~0.92 confidence) and father James Day (~0.92 confidence) and mother Mary Day (~0.92 confidence) and mother Annette Day (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Day
b. ~1893
Source father
● Household
· direct · ~0.92
Father
James Day
b. ~1899
Source father
● Household
· direct · ~0.92
Mother
Mary Day
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Annette Day
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Day
Son · 1940 · age 21 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Robert Day
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Day
Sibling · 1940 · age 17
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
40 people indexed on this census page (nara:1940:m-t0627-01532-00365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William D. Appleby | 50 | Head | Janitor | Maryland |
| 2 | Elizabeth A. Appleby | 58 | Wife | — | Maryland |
| 3 | Edward W. Staehlein | 27 | Stepson | Painter | Maryland |
| 4 | James J. Walsh | 25 | Head | Cashier | Maryland |
| 5 | Laura E. Walsh | 35 | Wife | — | Maryland |
| 6 | James J. Jr. Walsh | 6 | Son | — | Maryland |
| 7 | William Jenkins | 45 | Head | Service Man | Maryland |
| 8 | Florence M. Jenkins | 42 | Wife | — | Maryland |
| 9 | Catherine R. Berger | 22 | Lodger | Operator | Maryland |
| 10 | Louisa M. Richter | 57 | Head | — | Maryland |
| 11 | Louis W. Richter | 25 | Son | Shipping Clerk | Maryland |
| 12 | Woodrow W. Richter | 21 | Son | Clerk | Maryland |
| 13 | Henry J. Tuck | 40 | Boarder | Paymaster | Maryland |
| 14 | Marie C. Tuck | 33 | Daughter | Seamstress | Maryland |
| 15 | James H. Meeks | 59 | Head | — | Maryland |
| 16 | Mary E. Meeks | 49 | Wife | Maid | Maryland |
| 17 | Audrey V. Schaub | 20 | Niece | — | Maryland |
| 18 | Elsie F. Schaub | 18 | Niece | Checker | Maryland |
| 19 | Joseph W. Schaub | 44 | Brother-in-law | Helper | Maryland |
| 20 | Ernest Dango | 46 | Head | Laborer | Russia |
| 21 | Augusta Dango | 45 | Wife | — | Russia |
| 22 | Elsie E. Ehrhart | 22 | Stepdaughter | Telephone Operator | Pennsylvania |
| 23 | Mildred Dango | 12 | Daughter | — | Maryland |
| 24 | Annette J. Day | 40 | Head | Machine Operator | Maryland |
| 25 | James E. Jr. Day THIS PERSON | 21 | Son | Spreader Helper | Maryland |
| 26 | Robert J. Day | 20 | Son | Relating | Maryland |
| 27 | William J. Day | 17 | Son | Spreader Helper | Maryland |
| 28 | Francis H. Wood | 37 | Head | Rate Checker | Maryland |
| 29 | Aleen A. Wood | 39 | Wife | — | Maryland |
| 30 | Kenneth J. Wood | 4 | Son | — | Maryland |
| 31 | John J. Moulden | 29 | Head | Apprentice Dye Maker | Washington D.C. |
| 32 | Alice Moulden | 51 | Mother | — | Washington D.C. |
| 33 | James A. Arnold | 36 | Head | Grave Digger | Maryland |
| 34 | Paul J. Arnold | 16 | Son | — | Maryland |
| 35 | Ralph A. Arnold | 15 | Son | Clerk | Maryland |
| 36 | Mary A. Barnes | 59 | Head | — | Maryland |
| 37 | Annie R. Barnes | 22 | Daughter | Machine Operator | Maryland |
| 38 | James Mchaney | 18 | Niece | Whitter Stripper | Maryland |
| 39 | Doris L. Arnold | 12 | Daughter | — | Maryland |
| 40 | Augustin C. Le Blanc | 40 | Head | Machinist | Massachusetts |
Pedigree Summary
James + 2 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)