MR
Mary Richards — 1900 US Census Record
Linked across censuses1900 United States Federal Census · New Castle, Delaware
Our Model Tree links this Mary Richards across the 1900 and 1910 US Censuses in New Castle, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1865), then head of a 8-person household.
Age 35
b. ~1865
Female
Spouse
Born: Delaware
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | New Castle, Delaware |
| Surname | Richards |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Delaware |
| Birth Month | Jan |
| Birth Year | 1865 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Blackbird Hundred Eastern District |
| Est. Birth Year | ~1865 |
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.
8 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bertie Richards | Daughter | — | 8 | ~1892 |
| Rosie Richards | Daughter | — | 3 | ~1897 |
| Frederick Richards | Head | — | 54 | ~1846 |
| Harris Richards | Son | — | 3 | ~1897 |
| John Richards | Son | — | 9 | ~1891 |
| Charles Richards | Son | — | 6 | ~1894 |
| Roy Richards | Son | — | 11 | ~1889 |
| Mary Richards | Spouse | — | 35 | ~1865 |
Census Appearances
1900
New Castle, …
Spouse, age 35
New Castle, Delaware · implied b. ~1865 — 8 household members
| Surname | Richards |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Delaware |
| Birth Month | Jan |
| Birth Year | 1865 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1910
New Castle, …
Spouse, age 46
New Castle, Delaware · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Delaware |
| Years Married | 25 |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Richards across 2 US Census years (1900 and 1910) in New Castle, Delaware, using XGBoost record linkage.
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This person
Anchor record
Mary Richards
Spouse · 1900 · age 35 · b. ~1865 · Delaware
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — New Castle, Delaware
Open full size
1900 US Federal Census — New Castle, Delaware
Page Contents
49 people indexed on this census page (ia:1900:12thcensusofpopu156unit:0372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Henderson | 55 | Head | Farmer | Pennsylvania |
| 52 | Sarah E. Henderson | 50 | Wife | — | Pennsylvania |
| 53 | William Henderson | 31 | Son | Farm Laborer | Pennsylvania |
| 54 | Maggie Henderson | 29 | Daughter | — | Pennsylvania |
| 55 | Samuel Henderson | 23 | Son | — | Pennsylvania |
| 56 | William Rawley | 60 | Head | Farmer | Delaware |
| 57 | Sophia A. Rawley | 54 | Wife | — | Delaware |
| 58 | John T. Rawley | 19 | Son | Farm Laborer | Delaware |
| 59 | Irvin Rawley | 17 | Son | Farm Laborer | Delaware |
| 60 | Albert J. Staats | 38 | Head | Farmer | Delaware |
| 61 | Annie E. Staats | 28 | Wife | — | Delaware |
| 62 | Elizabeth A. Staats | 5 | Daughter | — | Delaware |
| 63 | Iva S. Staats | 3 | Daughter | — | Delaware |
| 64 | Ina D. Staats | 3 | Daughter | — | Delaware |
| 65 | Carroll B. Staats | 1 | Son | — | Delaware |
| 66 | Isaac Williams | 27 | Boarder | Farmer | Delaware |
| 67 | Frederick Richards | 54 | Head | Farm Laborer | Delaware |
| 68 | Mary Richards THIS PERSON | 35 | Wife | — | Delaware |
| 69 | Roy Richards | 10 | Son | At School | Delaware |
| 70 | John Richards | 8 | Son | — | Delaware |
| 71 | Bertie Richards | 7 | Daughter | — | Delaware |
| 72 | Charles Richards | 5 | Son | — | Delaware |
| 73 | Rosie Richards | 3 | Daughter | — | Delaware |
| 74 | Harris Richards | 2 | Son | — | Delaware |
| 75 | Jacob Hill | 60 | Head | Farm Laborer | Delaware |
| 76 | Mary J. Hill | 55 | Wife | — | Delaware |
| 77 | Mary E. Morris | 23 | Daughter | — | Delaware |
| 78 | Emma Hayes | 14 | Boarder | — | Delaware |
| 79 | William J. Reed | 30 | Head | Farm Laborer | Delaware |
| 80 | Ida Reed | 26 | Wife | — | Delaware |
| 81 | Samuel J. Reed | 7 | Son | — | Delaware |
| 82 | Harry B. Reed | 6 | Son | — | Delaware |
| 83 | Edith M. Reed | 2 | Daughter | — | Delaware |
| 84 | John J. Durham | 60 | Head | Farm Laborer | Delaware |
| 85 | Mary Durham | 42 | Wife | — | Delaware |
| 86 | Harry Durham | 13 | Son | At School | Delaware |
| 87 | Samuel Collins | 46 | Head | Farmer | Delaware |
| 88 | Rebecca Collins | 39 | Wife | — | Delaware |
| 89 | Samuel B. Collins | 13 | Son | At School | Delaware |
| 90 | Elizabeth M. Collins | 12 | Daughter | At School | Delaware |
| 91 | Mary J. David | 32 | Cousin | — | Delaware |
| 92 | Ellis M. David | 8 | Boarder | At School | Delaware |
| 93 | James Boyle | 44 | Boarder | Farm Laborer | Delaware |
| 94 | Samuel Derrickson | 58 | Head | Farmer | Delaware |
| 95 | Fannie E. Derrickson | 45 | Wife | — | Delaware |
| 96 | Ethel E. Derrickson | 11 | Daughter | At School | Delaware |
| 97 | Albert A. Derrickson | 9 | Son | At School | Delaware |
| 98 | Mary E. Armstrong | 43 | S-in-law | — | Delaware |
| 99 | Ida I. Armstrong | 33 | S-in-law | — | Delaware |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)