MC
Mary Chase — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Charles, Maryland
Our Model Tree links this Mary Chase across the 1930 and 1940 US Censuses in Charles, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 10-person household.
Age 6
b. ~1924
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Charles, Maryland |
| Surname | Chase |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| 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 | Election Dist 8 Bryantown |
| Est. Birth Year | ~1924 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Chase | Daughter | — | 9 | ~1921 |
| Joseph Chase | Son | — | 11 | ~1919 |
| John Chase | Son | — | 1 | ~1929 |
| Susie Chase | Daughter | — | 4 | ~1926 |
| Mary Chase | Daughter | — | 6 | ~1924 |
| Viola Chase | Spouse | — | 32 | ~1898 |
| George Chase | Son | — | 3 | ~1927 |
| Dennis Chase | Head | — | 34 | ~1896 |
| Mary Chase | Daughter | — | 13 | ~1917 |
| Julia Chase | Daughter | — | 8 | ~1922 |
Census Appearances
1930
Charles, Maryland
Daughter, age 6
Charles, Maryland · implied b. ~1924 — 10 household members
| Surname | Chase |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Daughter, age 17
Charles-County, Maryland · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | Margaret A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Mechanicsville |
| 1935 Residence (County) | St Marys |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Chase
Daughter · 1930 · age 6 · b. ~1924 · Maryland
★ You are viewing this record
Sibling
Susie Chase
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Chase
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Chase
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Chase
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Chase
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Chase
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Chase
Sibling · 1930 · age 13
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
1930 US Federal Census — Charles, Maryland
Open full size
1930 US Federal Census — Charles, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus872unit:1053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | George F Burch | 8 | Son | — | Maryland |
| 52 | Martha Burch | 66 | Mother | — | Maryland |
| 53 | June Chula | 67 | Head | — | Maryland |
| 54 | James T Robey | 59 | Head | Farmer | Maryland |
| 55 | Mary J Robey | 50 | Wife | — | Maryland |
| 56 | James R Robey | 25 | Son | Laborer | Maryland |
| 57 | Bertha Robey | 24 | Daughter | — | Maryland |
| 58 | Arthur Robey | 19 | Son | Laborer | Maryland |
| 59 | Mary B Jameson | 22 | Daughter | — | Maryland |
| 60 | Raymond Jameson | 3 | Son | — | Maryland |
| 61 | Francis Jameson | 1 | Son | — | Maryland |
| 62 | William J Chase | 50 | Head | Farmer | Maryland |
| 63 | Lucy A Chase | 52 | Wife | — | Maryland |
| 64 | William B Chase | 21 | Son | Laborer | Maryland |
| 65 | Mary L Chase | 78 | Mother | — | Maryland |
| 66 | Mary C Chase | 61 | Sister | — | Maryland |
| 67 | Dennis Chase | 34 | Head | Farmer | Maryland |
| 68 | Viola Chase | 32 | Wife | — | Maryland |
| 69 | Mary D Chase | 13 | Daughter | — | Maryland |
| 70 | Joseph L Chase | 11 | Son | — | Maryland |
| 71 | Margaret C Chase | 9 | Daughter | — | Maryland |
| 72 | Julia G Chase | 8 | Daughter | — | Maryland |
| 73 | Mary E Chase THIS PERSON | 6 | Daughter | — | Maryland |
| 74 | Susie M Chase | 4 | Daughter | — | Maryland |
| 75 | George D Chase | 3 | Son | — | Maryland |
| 76 | John M Chase | 1 | Son | — | Maryland |
| 77 | Frank Hawkins | 46 | Head | Farmer | Maryland |
| 78 | Mary J Hawkins | 46 | Wife | — | Maryland |
| 79 | Lily Hawkins | 26 | Daughter | — | Maryland |
| 80 | Mary Hawkins | 18 | Daughter | — | Maryland |
| 81 | John Hawkins | 15 | Son | Laborer | Maryland |
| 82 | Joseph Hawkins | 11 | Son | — | Maryland |
| 83 | Louise Hawkins | 4 | Daughter | — | Maryland |
| 84 | Mary E Burch | 56 | Head | — | Maryland |
| 85 | Emily L Burch | 20 | Daughter | — | Maryland |
| 86 | Charles B Kilhoffer | 45 | Head | Contractor | Nebraska |
| 87 | Clara L Kilhoffer | 61 | Wife | — | Ohio |
| 88 | Carl G Kilhoffer | 22 | Son | Carpenter | Arkansas |
| 89 | George H Walter | 81 | Head | Farmer | Germany |
| 90 | Almira I Walter | 74 | Wife | — | Germany |
| 91 | George A Walter | 54 | Son | Farmer | Ohio |
| 92 | Joseph Walter | 41 | Son | Farmer | Ohio |
| 93 | Henry H Walter | 41 | Head | Farmer | Ohio |
| 94 | Emma U Walter | 33 | Wife | — | Pennsylvania |
| 95 | Henry C Walter | 9 | Son | — | Maryland |
| 96 | Francis Walter | 6 | Son | — | Maryland |
| 97 | Edward Walter | 5 | Son | — | Maryland |
| 98 | Carl Walter | 4 | Son | — | Maryland |
| 99 | Harold Walter | 2 | Son | — | Maryland |
| 100 | Mary Walter | 0 | Daughter | — | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)