MA
Mary Anderson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Frederick, Maryland
Our Model Tree links this Mary Anderson across the 1910, 1920 and 1930 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed), with identified parents C & Clayton — first a daughter (b.~1909), then head of a 4-person household.
Age 21
b. ~1909
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Frederick, Maryland |
| Surname | Anderson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Brunswick Town |
| Est. Birth Year | ~1909 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Anderson | Daughter | — | 21 | ~1909 |
| C Anderson | Head | — | 49 | ~1881 |
| Harry Anderson | Son | — | 19 | ~1911 |
| Alice Anderson | Spouse | — | 46 | ~1884 |
Census Appearances
1910
Frederick, Maryland
Daughter, age 1
Frederick, Maryland · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Frederick, Maryland
Daughter, age 10
Frederick, Maryland · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| 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
Frederick, Maryland
Daughter, age 21
Frederick, Maryland · implied b. ~1909 — 4 household members
| Surname | Anderson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| 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 Anderson across 3 US Census years (1910, 1920 and 1930) in Frederick, Maryland, using XGBoost record linkage. Identified parents: father C Anderson (~0.92 confidence) and father Clayton Anderson (~0.92 confidence) and mother Ellen Anderson (~0.92 confidence) and mother Alice Anderson (~0.92 confidence) and mother Elsie Anderson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
C Anderson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Clayton Anderson
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Ellen Anderson
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Alice Anderson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Elsie Anderson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Anderson
Daughter · 1930 · age 21 · b. ~1909 · Maryland
★ You are viewing this record
Sibling
Harry Anderson
Sibling · 1930 · age 19
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 — Frederick, Maryland
Open full size
1930 US Federal Census — Frederick, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus874unit:1114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | C. A. Anderson | 49 | Head | Car Man | Maryland |
| 2 | Alice Anderson | 46 | Wife | None | Maryland |
| 3 | Mary Anderson THIS PERSON | 21 | Daughter | None | Maryland |
| 4 | Harry Anderson | 19 | Son | None | Maryland |
| 5 | Harvey E. Anderson | 25 | Head | Salesman | Maryland |
| 6 | Luella Anderson | 22 | Wife | None | Maryland |
| 7 | William Anderson | 2 | Son | None | Maryland |
| 8 | E. Albert Baker | 63 | Head | Train Service | Virginia |
| 9 | Ida Jane Baker | 53 | Wife | None | New York |
| 10 | Marion Baker | 18 | Son | Baker | Maryland |
| 11 | Marguerite Baker | 19 | Daughter | None | Maryland |
| 12 | William Woullard | 3 | Grandson | None | Maryland |
| 13 | Grover C. Stewart | 44 | Head | Train Service | West Virginia |
| 14 | Esther Stewart | 33 | Wife | None | Maryland |
| 15 | Mellon Stewart | 10 | Son | None | Maryland |
| 16 | Gwendolyn Stewart | 7 | Daughter | None | Maryland |
| 17 | Wayne Stewart | 4 | Son | None | Maryland |
| 18 | Lucy Mcdonald | 64 | Head | None | Maryland |
| 19 | Chas Barnhart | 42 | Son-in-law | Train Service | Maryland |
| 20 | Mary Barnhart | 35 | Daughter | None | Maryland |
| 21 | Clarence Miller | 33 | Son-in-law | Train Service | Virginia |
| 22 | Ettie Miller | 33 | Daughter | Teacher | Maryland |
| 23 | J. W. Hite | 35 | Head | Train Service | West Virginia |
| 24 | Lennie Hite | 27 | Wife | None | West Virginia |
| 25 | Paul Hite | 6 | Son | None | West Virginia |
| 26 | Wallace Hite | 3 | Son | None | West Virginia |
| 27 | Betty Hite | 2 | Daughter | None | West Virginia |
| 28 | Emma Sagle | 60 | Head | None | Maryland |
| 29 | Wm. J. Barton | 40 | Son-in-law | Train Service | Maryland |
| 30 | Rose Barton | 32 | Daughter | Teacher | Maryland |
| 31 | Emma Copeland | 8 | Granddaughter | None | Maryland |
| 32 | Frank Clover | 39 | Boarder | Barber | Maryland |
| 33 | Irene Clover | 36 | Boarder | None | Maryland |
| 34 | Frank Jr. Clover | 0 | Boarder | None | Maryland |
| 35 | Geo. W. Houser | 57 | Head | Engineer | West Virginia |
| 36 | Nora Houser | 46 | Wife | None | Maryland |
| 37 | Ernest Houser | 26 | Son | Salesman | Maryland |
| 38 | L. Richard | 49 | Head | Carpenter | Maryland |
| 39 | Catherine Richard | 40 | Wife | None | Virginia |
| 40 | Stanley Richard | 20 | Son | Seaman | Maryland |
| 41 | Stanley Houser | 15 | Cousin | None | Maryland |
| 42 | N. E. Cooper | 59 | Head | Repairman | Virginia |
| 43 | Lily M. Cooper | 53 | Wife | None | Virginia |
| 44 | Glen Cooper | 24 | Son | Laborer | Maryland |
| 45 | Margaret Cooper | 23 | Daughter | Cook | Maryland |
| 46 | Helen Cooper | 21 | Daughter | Clerk | Maryland |
| 47 | Eloise Cooper | 20 | Daughter | None | Maryland |
| 48 | Austin Cooper | 18 | Son | None | Maryland |
| 49 | Wilbur Cooper | 17 | Son | None | Maryland |
| 50 | Newton Cooper | 15 | Son | None | Maryland |
Pedigree Summary
Mary + 1 sibling
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 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)