MD
Mary Day — 1910 US Census Record
Model Tree available1910 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Day across the 1910, 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents August & Gertrude — first a daughter (b.~1910), then head of a 4-person household.
Age 0
b. ~1910
Female
Daughter
Born: Maryland
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Baltimore, Maryland |
| Surname | Day |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1910 |
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 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Day | Daughter | — | ~1910 | |
| August Day | Head | — | 21 | ~1889 |
| Sarah Fisher | Other | — | 69 | ~1841 |
| Gertrude Day | Spouse | — | 20 | ~1890 |
Census Appearances
1910
Baltimore, Maryland
Daughter, age
Baltimore, Maryland · implied b. ~1910 — 4 household members
| Surname | Day |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Daughter, age 11
Baltimore, Maryland · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 21
Baltimore, Maryland · implied b. ~1909 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Mabel M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Telephone Co |
| Class of Worker | W |
| 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 Day across 3 US Census years (1910, 1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage. Identified parents: father August Day (~0.92 confidence) and mother Gertrude Day (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Day
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Gertrude Day
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Day
Daughter · 1910 · age 0 · b. ~1910 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Baltimore, Maryland
Open full size
1910 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po557unit:0485)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary A Guldner | 45 | Wife | — | Pennsylvania |
| 52 | Ida M Guldner | 15 | Daughter | Operator | Maryland |
| 53 | Catherine N Guldner | 14 | Daughter | Operator | Maryland |
| 54 | Gertrude B Guldner | 11 | Daughter | — | Maryland |
| 55 | Edgar W Guldner | 8 | Son | — | Maryland |
| 56 | Flora D Guldner | 6 | Daughter | — | Pennsylvania |
| 57 | Evelyn R Guldner | 3 | Daughter | — | Maryland |
| 58 | Thelma F Guldner | 1 | Daughter | — | Maryland |
| 59 | August F Day | 21 | Head | Laborer | Maryland |
| 60 | Gertrude Day | 20 | Wife | — | Pennsylvania |
| 61 | Day | 1 | Son | — | Maryland |
| 62 | Mary E Day THIS PERSON | 0 | Daughter | — | Maryland |
| 63 | Sarah Fisher | 69 | Boarder | Caner-Wheelchair | Pennsylvania |
| 64 | Samuel E Blouse | 50 | Head | Operator | Maryland |
| 65 | Mary Blouse | 15 | Daughter | Operator | Maryland |
| 66 | Jesse Blouse | 10 | Son | — | Maryland |
| 67 | Martha Blouse | 9 | Daughter | — | Maryland |
| 68 | Andrew Frederick | 40 | Head | Producer | Maryland |
| 69 | Effie F Frederick | 25 | Wife | — | Maryland |
| 70 | Lillie Frederick | 11 | Grandchild | — | Maryland |
| 71 | Annie Frederick | 8 | Grandchild | — | Maryland |
| 72 | Mary Frederick | 6 | Grandchild | — | Maryland |
| 73 | William Frederick | 3 | Grandchild | — | Maryland |
| 74 | Samuel E Lewis | 30 | Brother | Merchant | Maryland |
| 75 | Arthur W James | 35 | Head | Laborer | Maryland |
| 76 | Anna M James | 36 | Wife | — | Maryland |
| 77 | Arthur James | 17 | Son | Laborer | Maryland |
| 78 | Marie D James | 13 | Daughter | Operator | Maryland |
| 79 | John E James | 10 | Son | Operator | Maryland |
| 80 | William D James | 5 | Son | — | Maryland |
| 81 | Laura F James | 62 | Mother-in-law | — | Maryland |
| 82 | Frank E Graham | 12 | Nephew | Laborer | Maryland |
| 83 | John F Graham | 11 | Niece | — | Maryland |
| 84 | Sarah M Graham | 8 | Niece | — | Maryland |
| 85 | James H Tinsley | 51 | Head | Laborer | Maryland |
| 86 | Mary N Tinsley | 20 | Daughter | — | Maryland |
| 87 | James H Tinsley | 18 | Son | Laborer | Maryland |
| 88 | Edward Tinsley | 16 | Son | Laborer | Maryland |
| 89 | Laura N Tinsley | 16 | Daughter | Operator | Maryland |
| 90 | Grace M Tinsley | 11 | Daughter | — | Maryland |
| 91 | Annie R Tinsley | 9 | Daughter | — | Maryland |
| 92 | Albert L Tinsley | 5 | Son | — | Maryland |
| 93 | Charles Dixon | 56 | Head | Laborer | Maryland |
| 94 | Florence L Dixon | 52 | Wife | — | Maryland |
| 95 | Charles T Dixon | 24 | Son | Laborer | Maryland |
| 96 | Riley W Dixon | 22 | Son | Driver | Maryland |
| 97 | Mary G Dixon | 18 | Daughter | Weaver | Maryland |
| 98 | Naoma Dixon | 13 | Daughter | Weaver | Maryland |
| 99 | William W Longfellow | 72 | Head | Producer | Virginia |
| 100 | Mary A Longfellow | 50 | Wife | — | Maryland |
Pedigree Summary
Mary
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)