JC
John Curtis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Maryland
Our Model Tree links this John Curtis across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 4-person household.
Age 71
b. ~1869
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Maryland |
| Surname | Curtis |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Maryland |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Election District 13 |
| Est. Birth Year | ~1869 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Violet Wood | Daughter | — | 20 | ~1920 |
| John Curtis | Head | — | 71 | ~1869 |
| Rodley Wood | Other | — | 20 | ~1920 |
| Carrie Curtis | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Montgomery, Maryland
Head, age 50
Montgomery, Maryland · implied b. ~1870 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | virginia |
1930
Montgomery, Maryland
Head, age 62
Montgomery, Maryland · implied b. ~1868 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 25 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Montgomery-County, Maryland
Head, age 71
Montgomery-County, Maryland · implied b. ~1869 — 4 household members
| Surname | Curtis |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Montgomery |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Maryland |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Curtis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Curtis
Head · 1940 · age 71 · b. ~1869 · 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 — Montgomery-County, Maryland
Open full size
1940 US Federal Census — Montgomery-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01555-00879)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clark W. Duvall | 16 | Son | — | Virginia |
| 2 | Shirley Ann Duvall | 4 | Daughter | — | Maryland |
| 3 | Jean Marie Duvall | 2 | Daughter | — | Maryland |
| 4 | Howard W. Patterson | 32 | Head | Nurse | Georgia |
| 5 | Delores A. Patterson | 36 | Wife | — | Pennsylvania |
| 6 | Richard G. Patterson | 12 | Son | — | New York |
| 7 | John B. Bramble | 55 | Head | — | Maryland |
| 8 | Hysia Bramble | 52 | Wife | — | Maryland |
| 9 | James D. Finyard | 69 | Head | Farmer | New Zealand |
| 10 | James P. Finyard | 33 | Son | Farmer | Maryland |
| 11 | Harvey R. Turner | 39 | Head | Truck Driver | Maryland |
| 12 | Florence M. Turner | 40 | Wife | — | Maryland |
| 13 | Eva E. Turner | 19 | Daughter | Nurse-Maid | Maryland |
| 14 | Audrey M. Turner | 12 | Daughter | — | Maryland |
| 15 | John W. Curtis THIS PERSON | 71 | Head | — | Virginia |
| 16 | Carrie B. Curtis | 64 | Wife | — | Virginia |
| 17 | Rodley W. Wood | 20 | Son-in-law | Truck Driver | Maryland |
| 18 | Violet M. Wood | 20 | Daughter | — | Maryland |
| 19 | John Kalinowski | 37 | Head | Carpenter & Landscaper Architect | New York |
| 20 | Elizabeth R. Kalinowski | 35 | Wife | — | Maryland |
| 21 | Carl W. Kalinowski | 1 | Son | — | Wash. D.C. |
| 22 | Clarence R. West | 31 | Hired hand | Farm Hand | Virginia |
| 23 | Dottie L. West | 29 | Housekeeper | Housekeeper | Virginia |
| 24 | Frances S. Buchanan | 45 | Head | — | Arizona |
| 25 | Frank Moyer | 51 | Head | Butler-Chauffeur | Virginia |
| 26 | Louisa H. Moyer | 52 | Wife | Housekeeper-Maid | Virginia |
| 27 | Richard M. Guthrie | 31 | Head | Farm Manager | Pennsylvania |
| 28 | Dereba A. Guthrie | 32 | Wife | — | Pennsylvania |
| 29 | Adrienne Guthrie | 10 | Daughter | — | Pennsylvania |
| 30 | R. Bradley Guthrie | 9 | Son | — | Pennsylvania |
| 31 | James A. Smith | 28 | Head | Manager Tel. Co. | Wash. D.C. |
| 32 | Catharine L. Smith | 28 | Wife | — | Maryland |
| 33 | Lita M. Smith | 2 | Daughter | — | Maryland |
| 34 | Wesley J. Smith | 0 | Son | — | Maryland |
| 35 | William Robert Smith | 51 | Head | Carpenter | North Carolina |
| 36 | Willie Eunice Smith | 45 | Wife | — | South Carolina |
| 37 | Carl Robert Smith | 21 | Son | Clerk | South Carolina |
| 38 | Harry L. Yeager | 36 | Head | Parts Salesman | Maryland |
| 39 | Adelaide A. Yeager | 23 | Wife | Clerk | Wash. D.C. |
| 40 | Theodore Theodore | 68 | Head | Bartender | Wash. D.C. |
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)