MC
Mary Crawford — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Frederick, Maryland
Our Model Tree links this Mary Crawford across the 1900, 1910, 1920 and 1930 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1854), then head of a 3-person household.
Age 76
b. ~1854
Female
Spouse
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Frederick, Maryland |
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Frederick City Part Of |
| Est. Birth Year | ~1854 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Crawford | Head | — | 76 | ~1854 |
| Meredith Crawford | Son | — | 27 | ~1903 |
| Mary Crawford | Spouse | — | 76 | ~1854 |
Census Appearances
1900
Frederick, Maryland
Spouse, age 45
Frederick, Maryland · implied b. ~1855 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Feb |
| Birth Year | 1855 |
| 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 |
1910
Frederick, Maryland
Spouse, age 55
Frederick, Maryland · implied b. ~1855 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 35 |
| Children Born | 12 |
| Children Living | 9 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Frederick, Maryland
Spouse, age 64
Frederick, Maryland · implied b. ~1856 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| 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
Spouse, age 76
Frederick, Maryland · implied b. ~1854 — 3 household members
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| 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 Crawford across 4 US Census years (1900, 1910, 1920 and 1930) in Frederick, Maryland, using XGBoost record linkage.
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This person
Anchor record
Mary Crawford
Spouse · 1930 · age 76 · b. ~1854 · 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:0193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ellen Reith | 44 | Wife | — | Maryland |
| 52 | Charles Reith | 26 | Son | Laborer | Maryland |
| 53 | Lawrence Reith | 24 | Son | Mechanic | Maryland |
| 54 | Bernard Reith | 10 | Son | — | Maryland |
| 55 | John Hane | 36 | Head | Butcher | Maryland |
| 56 | Ruth Hane | 20 | Wife | — | Maryland |
| 57 | James Hane | 2 | Son | — | Maryland |
| 58 | Jennie Bennett | 62 | Head | — | Maryland |
| 59 | Myrtle Bennett | 35 | Niece | Looper | Maryland |
| 60 | John Feaga | 56 | Head | Machinist | Maryland |
| 61 | Emma Feaga | 55 | Wife | — | Maryland |
| 62 | George Smith | 31 | Head | Laborer | Maryland |
| 63 | Helen Smith | 24 | Wife | — | Maryland |
| 64 | Arthur Baker | 37 | Head | Motorman | Maryland |
| 65 | Nellie Baker | 24 | Wife | — | Maryland |
| 66 | Katharine Baker | 5 | Daughter | — | Maryland |
| 67 | Chester Baker | 4 | Son | — | Maryland |
| 68 | Bettie Baker | 1 | Daughter | — | Maryland |
| 69 | Harry Haller | 40 | Head | Butcher | Maryland |
| 70 | Mary Haller | 34 | Wife | — | Maryland |
| 71 | Harry Jr. Haller | 16 | Son | — | Maryland |
| 72 | Cornelius Hildebrand | 43 | Head | Boarder | Maryland |
| 73 | Blanche Hildebrand | 36 | Wife | — | Maryland |
| 74 | Catharine Hildebrand | 9 | Daughter | — | Maryland |
| 75 | Carolina Hildebrand | 7 | Daughter | — | Maryland |
| 76 | Austin Hildebrand | 5 | Son | — | Maryland |
| 77 | Bettie Hildebrand | 2 | Daughter | — | Maryland |
| 78 | John Hildebrand | 1 | Son | — | Maryland |
| 79 | Irving Shuffler | 39 | Head | Baker | Maryland |
| 80 | Mary Shuffler | 36 | Wife | — | Maryland |
| 81 | Irene Shuffler | 17 | Daughter | — | Maryland |
| 82 | Irving Jr. Shuffler | 13 | Son | — | Maryland |
| 83 | Celesta Shelton | 22 | Cousin | Mend Cuffs | Maryland |
| 84 | Ernest Blackerda | 33 | Head | Laborer | Maryland |
| 85 | John Crawford | 76 | Head | — | Maryland |
| 86 | Mary Crawford THIS PERSON | 76 | Wife | — | Maryland |
| 87 | Meredith Crawford | 27 | Son | Laborer | Maryland |
| 88 | Harry Whisner | 36 | Head | Owner | Maryland |
| 89 | Pearl Whisner | 35 | Wife | — | Maryland |
| 90 | Marguerite Whisner | 13 | Daughter | — | Maryland |
| 91 | Janice Whisner | 7 | Daughter | — | Maryland |
| 92 | Anne Whisner | 4 | Daughter | — | Maryland |
| 93 | Harriett Whisner | 3 | Daughter | — | Maryland |
| 94 | Joseph Long | 56 | Head | Owner | Maryland |
| 95 | Louisa Long | 52 | Wife | — | Maryland |
| 96 | Charles Long | 25 | Son | Salesman | Maryland |
| 97 | Louise Long | 16 | Daughter | — | Maryland |
| 98 | Edward Harrison | 34 | Boarder | Salesman | Maryland |
| 99 | John Bowers | 49 | Head | Brakeman | West Virginia |
| 100 | Mary Bowers | 42 | Wife | — | Maryland |
Related Census Records
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)