MF
Mary Frey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Frederick, Maryland
Our Model Tree links this Mary Frey across the 1920, 1930 and 1940 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 6-person household.
Age 40
b. ~1890
Female
Spouse
Born: Nebraska
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Frederick, Maryland |
| Surname | Frey |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Jefferson District |
| Est. Birth Year | ~1890 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Allen | Other | — | 19 | ~1911 |
| Clayton Frey | Son | — | 18 | ~1912 |
| William Frey | Head | — | 43 | ~1887 |
| Wayman Frey | Son | — | 10 | ~1920 |
| Mary Frey | Spouse | — | 40 | ~1890 |
| Martin Frey | Son | — | 15 | ~1915 |
Census Appearances
1920
Frederick, Maryland
Spouse, age 30
Frederick, Maryland · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frye |
| Given Name | Mary O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Frederick, Maryland
Spouse, age 40
Frederick, Maryland · implied b. ~1890 — 6 household members
| Surname | Frey |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Frederick-County, Maryland
Spouse, age 50
Frederick-County, Maryland · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frey |
| Given Name | Mamie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Jefferson Election District #14 |
| 1935 Residence (County) | Frederick |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Frey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Frey
Spouse · 1930 · age 40 · b. ~1890 · Maryland
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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:0806)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Minnie R Nuse | 54 | Wife | — | Ohio |
| 2 | Margot O Nuse | 19 | Daughter | — | Maryland |
| 3 | Dorothy M Nuse | 17 | Daughter | — | Maryland |
| 4 | James C Nuse | 13 | Son | — | Maryland |
| 5 | Catherine I Nuse | 11 | Daughter | — | Maryland |
| 6 | William E Frey | 43 | Head | Farming | Maryland |
| 7 | Mary E Frey THIS PERSON | 40 | Wife | — | Nebraska |
| 8 | Clayton S Frey | 18 | Son | Farm Laborer | Maryland |
| 9 | Martin W Frey | 15 | Son | — | Maryland |
| 10 | Wayman D Frey | 10 | Son | — | Maryland |
| 11 | Lawrence A Allen | 19 | Boarder | Farm Laborer | Maryland |
| 12 | Clifford J Smith | 66 | Head | Farming | Maryland |
| 13 | Viola M Smith | 42 | Wife | — | Virginia |
| 14 | Nellie G Smith | 19 | Daughter | — | Maryland |
| 15 | Mary E Smith | 15 | Daughter | — | Maryland |
| 16 | Althea P Smith | 13 | Daughter | — | Maryland |
| 17 | John R Smith | 10 | Son | — | Maryland |
| 18 | Charles Smith | 30 | Friend | Farm Laborer | Maryland |
| 19 | Guy V Smith | 27 | Head | Farm Laborer | Maryland |
| 20 | Mary C Smith | 23 | Wife | — | Maryland |
| 21 | Charles V Smith | 2 | Son | — | Maryland |
| 22 | Loyd D Hale | 39 | Head | — | Maryland |
| 23 | Mary A Hale | 32 | Wife | — | Virginia |
| 24 | Zabra V Hale | 4 | Daughter | — | Maryland |
| 25 | Evelyn M Hale | 3 | Daughter | — | Maryland |
| 26 | Charles A Fowley | 62 | Head | Farming | Virginia |
| 27 | Ella H Fowley | 53 | Wife | — | Virginia |
| 28 | Norman S Remsburg | 31 | Head | Farming | Maryland |
| 29 | Alice N Remsburg | 25 | Wife | — | Maryland |
| 30 | Bette N Remsburg | 5 | Daughter | — | Maryland |
| 31 | Doris J Remsburg | 1 | Daughter | — | Maryland |
| 32 | Richard Snyder | 18 | Farm Laborer | Farm Laborer | Maryland |
| 33 | Joshua W Sigler | 41 | Head | Farmer | Maryland |
| 34 | Mary M Sigler | 32 | Wife | — | Virginia |
| 35 | Virginia S Sigler | 10 | Daughter | — | Maryland |
| 36 | Charles G Sigler | 8 | Son | — | Maryland |
| 37 | Mary J Sigler | 3 | Daughter | — | Maryland |
| 38 | Helen S Sigler | 0 | Daughter | — | Maryland |
| 39 | Nelson B Willingham | 52 | Farm Laborer | Farm Laborer | Virginia |
| 40 | Joseph H Corall | 69 | Head | Farmer | Virginia |
| 41 | Hattie C Corall | 59 | Wife | — | Virginia |
| 42 | Harvey W Corall | 29 | Son | Farm Laborer | Virginia |
| 43 | Helen V Corall | 19 | Daughter-in-law | — | Maryland |
| 44 | Marion V Corall | 1 | Granddaughter | — | Maryland |
| 45 | Margaret C Corall | 17 | Daughter | — | Virginia |
| 46 | Raymond B Coley | 25 | Friend | Farm Laborer | Maryland |
| 47 | Earl M Wachter | 25 | Head | Farm Laborer | Maryland |
| 48 | Leona R Wachter | 24 | Wife | — | Virginia |
| 49 | Frank W Frey | 51 | Head | Farmer | Ohio |
| 50 | Susan O Frey | 51 | Wife | — | Virginia |
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)