JC
James Curtis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this James Curtis across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents Aaron & Byron — first a son (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Curtis |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Sparks & Parkton |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 250 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Sparks Parkton |
| Est. Birth Year | ~1906 |
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 |
|---|---|---|---|---|
| Wilbur Curtis | Son | — | 23 | ~1917 |
| Byron Curtis | Head | — | 66 | ~1874 |
| Arson Curtis | Son | — | 38 | ~1902 |
| Gladys Curtis | Daughter | — | 25 | ~1915 |
| Robert Curtis | Son | — | 17 | ~1923 |
| Charles Curtis | Son | — | 39 | ~1901 |
| James Curtis | Son | — | 34 | ~1906 |
Census Appearances
1920
Baltimore, Maryland
Son, age 14
Baltimore, Maryland · implied b. ~1906 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 24
Baltimore, Maryland · implied b. ~1906 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | on Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 34
Baltimore-County, Maryland · implied b. ~1906 — 7 household members
| Surname | Curtis |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Sparks & Parkton |
| 1935 Residence (County) | Baltimore |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 250 |
| Highest Grade | No 6 |
| 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 Curtis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Aaron Curtis (~0.92 confidence) and father Byron Curtis (~0.92 confidence) and mother Martha Curtis (~0.92 confidence) and mother Martha Curtis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Aaron Curtis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Byron Curtis
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Martha Curtis
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Martha Curtis
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Curtis
Son · 1940 · age 34 · b. ~1906 · Maryland
★ You are viewing this record
Sibling
Robert Curtis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Curtis
Sibling · 1940 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Curtis
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arson Curtis
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Curtis
Sibling · 1940 · age 25
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01504-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cletus A Armacost | 2 | Son | — | Maryland |
| 2 | John M Fishpaw | 12 | Lodger | — | Maryland |
| 3 | Freeman Miller | 54 | Head | Farmer | Maryland |
| 4 | Rachel E Miller | 60 | Wife | — | Maryland |
| 5 | Hellen E Miller | 28 | Daughter | Secretary | Maryland |
| 6 | Rachel A Hale | 72 | Head | — | Maryland |
| 7 | Noah Lloyd | 64 | Brother | Laborer | Maryland |
| 8 | Ernest T Hale | 32 | Son | Farmer | Maryland |
| 9 | Ruth O Hale | 28 | Daughter in law | — | Maryland |
| 10 | June E Hale | 9 | Daughter | — | Maryland |
| 11 | Paul N Hale | 8 | Son | — | Maryland |
| 12 | Lewis E Moxfoot | 72 | Head | Farmer | Maryland |
| 13 | George Ann Moxfoot | 70 | Wife | — | Maryland |
| 14 | Melvie Thompson | 41 | Daughter | — | Maryland |
| 15 | Alexander Thompson | 40 | Son in law | Hay & Grain Dealer | Maryland |
| 16 | B. Sterling Thompson | 14 | Grandson | — | Maryland |
| 17 | Robert L Thompson | 8 | Grandson | — | Maryland |
| 18 | George E Moxfoot | 39 | Head | Laborer | Maryland |
| 19 | Addie Moxfoot | 33 | Wife | — | Maryland |
| 20 | Patsy J Moxfoot | 1 | Daughter | — | Maryland |
| 21 | George F Curtis | 28 | Head | Factory Worker | Maryland |
| 22 | Goldye R Curtis | 23 | Wife | — | Maryland |
| 23 | Harry T Curtis | 4 | Son | — | Maryland |
| 24 | Byron L Curtis | 66 | Head | Farmer | Maryland |
| 25 | Charles P Curtis | 39 | Son | Laborer | Maryland |
| 26 | Arson A Curtis | 38 | Son | Laborer | Maryland |
| 27 | James E Curtis THIS PERSON | 34 | Son | Laborer | Maryland |
| 28 | Gladys V Curtis | 25 | Daughter | — | Maryland |
| 29 | Wilbur R Curtis | 23 | Son | Salesman | Maryland |
| 30 | Robert L Curtis | 17 | Son | — | Maryland |
| 31 | Andrew R Gill | 61 | Head | Carpenter | Maryland |
| 32 | Bessie M Gill | 58 | Wife | — | Maryland |
| 33 | Darby S Ensor | 66 | Lodger | Farmer | Maryland |
| 34 | Charles E Naylor | 57 | Head | Laborer | Maryland |
| 35 | Daisy B Naylor | 42 | Wife | — | Maryland |
| 36 | Leona Wilhelm | 23 | Daughter | — | Maryland |
| 37 | Lewis Wilhelm | 27 | Son in law | Carpenter | Maryland |
| 38 | Savilla E Naylor | 17 | Daughter | — | Maryland |
| 39 | Rose E Wilhelm | 1 | Granddaughter | — | Maryland |
| 40 | Lena M Wilhelm | 8 | Granddaughter | — | Maryland |
Pedigree Summary
James + 5 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)