JM
James Mills — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this James Mills across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Mills |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Laborer |
| Industry | Private Cemetery |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1921 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| William Mills | Head | — | 61 | ~1879 |
| Calvin Mills | Son | — | 11 | ~1929 |
| William Mills | Son | — | 13 | ~1927 |
| Ernest Mills | Son | — | 21 | ~1919 |
| Stanley Mills | Son | — | 8 | ~1932 |
| James Mills | Son | — | 19 | ~1921 |
| Bertha Mills | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 19
Baltimore-City-County, Maryland · implied b. ~1921 — 7 household members
| Surname | Mills |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Occupation | Laborer |
| Industry | Private Cemetery |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 James Mills across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mills
Son · 1940 · age 19 · b. ~1921 · Maryland
★ You are viewing this record
Sibling
Ernest Mills
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Mills
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Mills
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mills
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-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-t0627-01533-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rhoda Daily | 15 | Daughter | — | Maryland |
| 42 | Margaret Denjon | 63 | Head | — | Maryland |
| 43 | Mildred Denjon | 26 | Daughter | Stenographer | Maryland |
| 44 | Alfred Denjon | 35 | Son | Printer | Maryland |
| 45 | William Ostiner | 25 | Head | Service Salesman | Maryland |
| 46 | Edith Ostiner | 30 | Wife | — | Maryland |
| 47 | Henry Priebe | 44 | Head | Grave Digger | Maryland |
| 48 | Grace Priebe | 44 | Wife | — | Maryland |
| 49 | Henry Jr. Priebe | 18 | Son | Laborer | Maryland |
| 50 | Josephine Priebe | 16 | Daughter | — | Maryland |
| 51 | Elizabeth Priebe | 12 | Daughter | — | Maryland |
| 52 | Louise Priebe | 10 | Daughter | — | Maryland |
| 53 | Melvin Priebe | 7 | Son | — | Maryland |
| 54 | Samuel Montgomery | 44 | Head | House Painter | Maryland |
| 55 | Ruth Montgomery | 20 | Daughter | Secretary | Maryland |
| 56 | Emma Montgomery | 17 | Daughter | — | Maryland |
| 57 | Maxine Montgomery | 12 | Daughter | — | Maryland |
| 58 | Beulah Montgomery | 9 | Daughter | — | Maryland |
| 59 | Walter Beale | 37 | Head | Loader | Maryland |
| 60 | Margaret Beale | 31 | Wife | — | Maryland |
| 61 | Margaret Beale | 11 | Daughter | — | Maryland |
| 62 | Doris Beale | 9 | Daughter | — | Maryland |
| 63 | Walter Jr. Beale | 8 | Son | — | Maryland |
| 64 | Mary L. Beale | 6 | Daughter | — | Maryland |
| 65 | Betty J. Beale | 2 | Daughter | — | Maryland |
| 66 | Mary Priebe | 74 | Mother-in-law | — | Germany |
| 67 | William Mills | 61 | Head | Elevator Mechanic | Maryland |
| 68 | Bertha Mills | 48 | Wife | — | Maryland |
| 69 | Ernest Mills | 21 | Son | Elevator Installer | Maryland |
| 70 | James Mills THIS PERSON | 19 | Son | Laborer | Maryland |
| 71 | William Mills | 13 | Son | — | Maryland |
| 72 | Calvin Mills | 11 | Son | — | Maryland |
| 73 | Stanley Mills | 8 | Son | — | Maryland |
| 74 | Joseph Henn | 40 | Head | Machinist | Maryland |
| 75 | Marie Henn | 36 | Wife | — | Maryland |
| 76 | Marie Henn | 17 | Daughter | — | Maryland |
| 77 | Helen Henn | 14 | Daughter | — | Maryland |
| 78 | Paul Henn | 12 | Son | — | Maryland |
| 79 | Chadys Stevens | 32 | Head | — | District of Columbia |
| 80 | Florence Bachlor | 62 | Sister | — | 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)