JC
John Chase — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Chase across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1911), then head of a 9-person household.
Age 29
b. ~1911
Male
Son
Born: Maryland
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Chase |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Separated |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | musician |
| Industry | State Band |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 280 |
| Highest Grade | 9 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Musician |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1911 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Herbert Chase | Son | — | 24 | ~1916 |
| Harry Chase | Son | — | 15 | ~1925 |
| John Chase | Head | — | 51 | ~1889 |
| Charles Chase | Son | — | 19 | ~1921 |
| Carey Chase | Daughter | — | 9 | ~1931 |
| John Chase | Son | — | 29 | ~1911 |
| Annie Chase | Spouse | — | 52 | ~1888 |
| Ethel Chase | Daughter | — | 12 | ~1928 |
| Shelton Chase | Son | — | 26 | ~1914 |
Census Appearances
1920
Baltimore, Maryland
Son, age 13
Baltimore, Maryland · implied b. ~1907 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 19
Baltimore, Maryland · implied b. ~1911 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Musician |
| Industry | Theatre |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 29
Baltimore-City-County, Maryland · implied b. ~1911 — 9 household members
| Surname | Chase |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Separated |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | musician |
| Industry | State Band |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 280 |
| Highest Grade | 9 |
| 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 John Chase across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Chase (~0.92 confidence) and father John Chase (~0.92 confidence) and father John Chase (~0.92 confidence) and mother Annie Chase (~0.92 confidence) and mother Lilly Chase (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Chase
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Chase
b. ~1889
Source father
● Household
· direct · ~0.92
Father
John Chase
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Annie Chase
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Lilly Chase
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Chase
Son · 1940 · age 29 · b. ~1911 · Maryland
★ You are viewing this record
Sibling
Shelton Chase
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Chase
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carey Chase
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Chase
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Chase
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Chase
Sibling · 1940 · age 12
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-t0627-01510-00394)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hattie Brunner | 25 | Wife | Maid | Maryland |
| 2 | Katherine Brunner | 7 | Daughter | — | Maryland |
| 3 | Edward Brunner | 5 | Son | — | Maryland |
| 4 | Mary Brown | 29 | Head | Waitress | Maryland |
| 5 | Dolores Brown | 8 | Daughter | — | Maryland |
| 6 | Lee Carey | 21 | Head | Waitress | Maryland |
| 7 | John Douglas | 59 | Head | Labor | Virginia |
| 8 | Betty Douglas | 58 | Wife | — | Virginia |
| 9 | John Chase | 51 | Head | — | Maryland |
| 10 | Annie Chase | 52 | Wife | — | Maryland |
| 11 | John Jr. Chase THIS PERSON | 29 | Son | Musician | Maryland |
| 12 | Shelton Chase | 26 | Son | Janitor | Maryland |
| 13 | Herbert Chase | 24 | Son | Peddler | Maryland |
| 14 | Charles Chase | 19 | Son | Usher | Maryland |
| 15 | Harry Chase | 15 | Son | — | Maryland |
| 16 | Ethel Chase | 12 | Daughter | — | Maryland |
| 17 | Carey Chase | 9 | Daughter | — | Maryland |
| 18 | James Conigland | 29 | Head | Labor | N. Carolina |
| 19 | Ida Conigland | 30 | Wife | — | N. Carolina |
| 20 | Jessie H. Conigland | 13 | Daughter | — | N. Carolina |
| 21 | Clarence Murray | 38 | Head | Barber | N. Carolina |
| 22 | Emma Mower | 33 | Head | Maid | N. Carolina |
| 23 | James Mower | 2 | Son | — | Maryland |
| 24 | Sam Boland | 65 | Head | Janitor | Virginia |
| 25 | Kologas Keriakos | 52 | Head | Cook | Greece |
| 26 | Rudolph Cullis | 33 | Head | — | N. Carolina |
| 27 | Lena Cullis | 32 | Wife | — | N. Carolina |
| 28 | Rudolph Jr. Cullis | 8 | Son | — | N. Carolina |
| 29 | Marcia Cullis | 6 | Daughter | — | N. Carolina |
| 30 | Cleveland Cullis | 4 | Son | — | N. Carolina |
| 31 | Stephen Brown | 28 | Head | Labor | N. Carolina |
| 32 | Estelle Brown | 32 | Wife | — | N. Carolina |
| 33 | Rozier Eugene Brown | 11 | Son | Maid | Maryland |
| 34 | Rose Basque | 25 | Head | Labor | Maryland |
| 35 | Emma Basque | 5 | Daughter | — | N. Carolina |
| 36 | Baker Basque | 4 | Son | — | N. Carolina |
| 37 | Eddie Harris | 27 | Lodger | Labor | South Carolina |
| 38 | Bessie Itay | 54 | Head | Owner | Russia |
| 39 | Sarah Itay | 27 | Daughter | Clerk | Russia |
| 40 | Francis Itay | 24 | Daughter | Sales Lady | Russia |
Related Census Records
Pedigree Summary
John + 6 siblings
Gen 1 · 5 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)