JH
James Hopkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this James Hopkins across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1854), then head of a 2-person household.
Age 86
b. ~1854
Male
Head
Born: Maryland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Hopkins |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 86 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Industry | Yes |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1854 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Hopkins | Head | — | 86 | ~1854 |
| George Hopkins | Son | — | 56 | ~1884 |
Census Appearances
1920
Baltimore, Maryland
Head, age 66
Baltimore, Maryland · implied b. ~1854 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | James T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Furnace Hand |
| Industry | Copper Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Other, age 77
Baltimore, Maryland · implied b. ~1853 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | James T |
| Relationship to Head | Head-H |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Age at First Marriage | 27 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Furnace Builder |
| Industry | Copper Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3,500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 86
Baltimore-City-County, Maryland · implied b. ~1854 — 2 household members
| Surname | Hopkins |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 86 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Industry | Yes |
| Highest Grade | No 4 |
| 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 James Hopkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Hopkins
Head · 1940 · age 86 · b. ~1854 · Maryland
★ You are viewing this record
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-t0627-01508-00784)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alvina Bolewski | 16 | — | — | Maryland |
| 42 | George Kommalan | 52 | Head | Laborer | Maryland |
| 43 | George Kommalan | 24 | Son | Accountant | Maryland |
| 44 | Marie Kommalan | 23 | Daughter | Clerk | Maryland |
| 45 | C William Kommalan | 21 | Son | Mechanic | Maryland |
| 46 | M August Kommalan | 17 | Son | — | Maryland |
| 47 | Anna Kommalan | 78 | Mother | — | Maryland |
| 48 | Andrew Felelein | 48 | Head | Laborer | Maryland |
| 49 | Margaret Felelein | 45 | Wife | — | Maryland |
| 50 | Gertrude Felelein | 24 | Daughter | Operator | Maryland |
| 51 | Lillian Felelein | 20 | Daughter | Operator | Maryland |
| 52 | Josephine Felelein | 14 | Daughter | — | Maryland |
| 53 | John Kanczyk | 46 | Head | Mechanic | Maryland |
| 54 | Mary Kanczyk | 43 | Wife | — | Maryland |
| 55 | Adam Kanczyk | 22 | Son | Mechanic Helper | Maryland |
| 56 | Albert Kanczyk | 20 | Son | Mechanic | Maryland |
| 57 | Ernest Kanczyk | 16 | Son | — | Maryland |
| 58 | George Wakefield | 33 | Head | Fireman | Maryland |
| 59 | Agnes Wakefield | 30 | Wife | — | Maryland |
| 60 | John Pinkowski | 57 | Head | Car Man | Maryland |
| 61 | Theresa Pinkowski | 44 | Wife | Operator | Maryland |
| 62 | James J Hopkins THIS PERSON | 86 | Head | — | Maryland |
| 63 | George A Hopkins | 56 | Son | Machinist | Maryland |
| 64 | Frank Antkowiak | 44 | Head | Officer | Maryland |
| 65 | Victoria Antkowiak | 44 | Wife | — | Maryland |
| 66 | Bernard Antkowiak | 22 | Son | Ship Fitter Helper | Maryland |
| 67 | Dorothy Antkowiak | 20 | Daughter | Laborer | Maryland |
| 68 | Rita Antkowiak | 17 | Daughter | — | Maryland |
| 69 | Frances Antkowiak | 11 | Son | — | Maryland |
| 70 | Robert Antkowiak | 6 | Son | — | Maryland |
| 71 | Mary Czaja | 38 | Head | Cigar Maker | Poland |
| 72 | Frank Czaja | 36 | Brother | Clerk | Poland |
| 73 | Genevieve Czaja | 26 | Sister | Operator | Maryland |
| 74 | Henry Mierzwinski | 62 | Head | — | Austria |
| 75 | Josephine Mierzwinski | 54 | Wife | — | Austria |
| 76 | Joseph Mierzwinski | 36 | Son | Tin Cutter | Maryland |
| 77 | Pete Mierzwinski | 19 | Son | Pattern Maker | Maryland |
| 78 | Agnes Mierzwinski | 14 | Daughter | — | Maryland |
| 79 | Theodore Borowski | 25 | Head | Line Man | Maryland |
| 80 | Martha Borowski | 23 | Wife | — | 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)