MC
Mary Chase — 1920 US Census Record
Model Tree available1920 United States Federal Census · Calvert, Maryland
Our Model Tree links this Mary Chase across the 1920, 1930 and 1940 US Censuses in Calvert, Maryland (XGBoost, ~Confirmed), with identified parents Joe & Althia — first a daughter (b.~1918), then head of a 5-person household.
Age 2
b. ~1918
Female
Daughter
Born: Maryland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Calvert, Maryland |
| Surname | Chase |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | 2Nd District Part Of |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rodgers Kent | Other | — | 15 | ~1905 |
| Joe Chase | Head | — | 72 | ~1848 |
| Lizzie Chase | Spouse | — | 40 | ~1880 |
| Mary Chase | Daughter | — | 2 | ~1918 |
| Alfred Chase | Son | — | 11 | ~1909 |
Census Appearances
1920
Calvert, Maryland
Daughter, age 2
Calvert, Maryland · implied b. ~1918 — 5 household members
| Surname | Chase |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Calvert, Maryland
Daughter, age 12
Calvert, Maryland · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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
Calvert-County, Maryland
Daughter, age 21
Calvert-County, Maryland · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | North Chesapeake Beach Town |
| 1935 Residence (County) | Calvert |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 260 |
| Highest Grade | No 5 |
| 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 Mary Chase across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joe Chase (~0.92 confidence) and mother Althia Chase (~0.92 confidence) and mother Lizzie Chase (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joe Chase
b. ~1848
Source father
● Household
· direct · ~0.92
Mother
Althia Chase
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Chase
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Chase
Daughter · 1920 · age 2 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Alfred Chase
Sibling · 1920 · age 11
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
1920 US Federal Census — Calvert, Maryland
Open full size
1920 US Federal Census — Calvert, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu654unit:0440)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James Mackall | 72 | Head | Farmer | Maryland |
| 52 | Annie S Mackall | 69 | Wife | — | Maryland |
| 53 | Ada M Chew | 32 | Daughter | — | Maryland |
| 54 | Mary W Jones | 15 | Granddaughter | — | Maryland |
| 55 | Caroll Mackall | 14 | Daughter | — | Maryland |
| 56 | Calvert Ross | 4 | Grandson | — | Maryland |
| 57 | John W Lertch | 49 | Head | Doctor | Maryland |
| 58 | E Gertrude Lertch | 43 | Wife | — | Maryland |
| 59 | Hellen E Lertch | 16 | Daughter | — | Maryland |
| 60 | Mary E Lertch | 15 | Daughter | — | Maryland |
| 61 | John W Jr Lertch | 13 | Son | — | Maryland |
| 62 | Gertrude Lertch | 10 | Daughter | — | Maryland |
| 63 | Margaret Lertch | 8 | Daughter | — | Maryland |
| 64 | Emily Lertch | 7 | Daughter | — | Maryland |
| 65 | Frances Lertch | 4 | Daughter | — | Maryland |
| 66 | James M Lertch | 2 | Son | — | Maryland |
| 67 | Hettie Brooks | 27 | Servant | — | Maryland |
| 68 | Charles Mackall | 52 | Head | Farmer | Maryland |
| 69 | Auntie Mackall | 46 | Wife | — | Maryland |
| 70 | Jeannett Mackall | 18 | Daughter | — | Maryland |
| 71 | Thomas Mackall | 21 | Son | Farm Laborer | Maryland |
| 72 | Contie Mackall | 18 | Son | Farm Laborer | Maryland |
| 73 | Susie Mackall | 14 | Daughter | — | Maryland |
| 74 | Tryphena Mackall | 11 | Daughter | — | Maryland |
| 75 | Adria Mackall | 13 | Daughter | — | Maryland |
| 76 | Lee A Chew | 10 | Nephew | — | Maryland |
| 77 | George E Mackall | 22 | Head | Farm Laborer | Maryland |
| 78 | Annie Mackall | 19 | Wife | — | Maryland |
| 79 | Edith Mackall | 8 | Daughter | — | Maryland |
| 80 | George M Mackall | 5 | Son | — | Maryland |
| 81 | Leundra Mackall | 3 | Daughter | — | Maryland |
| 82 | James Rent | 69 | Boarder | Farm Laborer | Maryland |
| 83 | John S Tyler | 46 | Head | Farmer | Maryland |
| 84 | Bessie E Tyler | 44 | Wife | — | Maryland |
| 85 | John W Tyler | 16 | Son | — | Maryland |
| 86 | Joseph J Tyler | 14 | Son | — | Maryland |
| 87 | Martha B Tyler | 11 | Daughter | — | Maryland |
| 88 | Enoch C Tyler | 9 | Son | — | Maryland |
| 89 | Cora P Tyler | 7 | Daughter | — | Maryland |
| 90 | Edna A Tyler | 5 | Daughter | — | Maryland |
| 91 | Daniel C Tyler | 3 | Son | — | Maryland |
| 92 | Harriet A Tyler | 1 | Daughter | — | Maryland |
| 93 | Benjamin Tyler | 0 | Son | — | Maryland |
| 94 | Robt C. B. Belt | 56 | Head | — | Maryland |
| 95 | H Kent Bowie | 38 | Nephew | Auto Mechanic | Maryland |
| 96 | Joe Chase | 72 | Head | Farmer | Maryland |
| 97 | Lizzie Chase | 40 | Wife | — | Maryland |
| 98 | Alfred Chase | 11 | Son | — | Maryland |
| 99 | Mary F Chase THIS PERSON | 2 | Daughter | — | Maryland |
| 100 | Rodgers Kent | 15 | Boarder | — | Maryland |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)