IS
Isaac Smith — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Frederick, Maryland
Our Model Tree links this Isaac Smith across the 1900, 1910 and 1920 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 5-person household.
Age 46
b. ~1874
Male
Head
Born: Maryland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Frederick, Maryland |
| Surname | Smith |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | E D 5 Liberty |
| Est. Birth Year | ~1874 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Edna Smith | Daughter | — | 12 | ~1908 |
| Catherine Smith | Daughter | — | 8 | ~1912 |
| Isaac Smith | Head | — | 46 | ~1874 |
| Isaac Smith | Son | — | 2 | ~1918 |
| Mary Smith | Spouse | — | 44 | ~1876 |
Census Appearances
1900
Frederick, Maryland
Head, age 26
Frederick, Maryland · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Isaac F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Mar |
| Birth Year | 1874 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Merchant tailor |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
Frederick, Maryland
Head, age 35
Frederick, Maryland · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Isaac T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 10 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Frederick, Maryland
Head, age 46
Frederick, Maryland · implied b. ~1874 — 5 household members
| Surname | Smith |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| 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 Isaac Smith across 3 US Census years (1900, 1910 and 1920) in Frederick, Maryland, using XGBoost record linkage.
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This person
Anchor record
Isaac Smith
Head · 1920 · age 46 · b. ~1874 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Frederick, Maryland
Open full size
1920 US Federal Census — Frederick, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu672unit:1155)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles N Harbaugh | 14 | Son | Laborer | Maryland |
| 2 | Maurice H Harbaugh | 4 | Son | — | Maryland |
| 3 | Edna E Harbaugh | 3 | Daughter | — | Maryland |
| 4 | Lucy M Harbaugh | 19 | Daughter | — | Maryland |
| 5 | Margaret L Harbaugh | 1 | Granddaughter | — | Maryland |
| 6 | Cora L Smith | 15 | Daughter | Servant | Maryland |
| 7 | John J Jordan | 70 | Head | Farmer | Maryland |
| 8 | Anna M Jordan | 67 | Wife | — | Maryland |
| 9 | James A Taylor | 35 | Head | Laborer | Maryland |
| 10 | Anna May Taylor | 23 | Wife | — | Maryland |
| 11 | Harry A Taylor | 3 | Son | — | Maryland |
| 12 | Hilda V Taylor | 1 | Daughter | — | Maryland |
| 13 | Stephen Tucker | 50 | Head | Farmer | Maryland |
| 14 | Annie M Tucker | 42 | Wife | — | Maryland |
| 15 | Clarence G Tucker | 16 | Son | — | Maryland |
| 16 | George E Tucker | 13 | Son | — | Maryland |
| 17 | Lewis Tucker | 9 | Son | — | Maryland |
| 18 | Mary E Holly | 39 | Cousin | — | Maryland |
| 19 | Marcella Lewis | 55 | Head | Nursing | Maryland |
| 20 | William H Lewis | 37 | Son | Laborer | Maryland |
| 21 | Edward Berger | 53 | Head | Farmer | Maryland |
| 22 | Mary E Berger | 44 | Wife | — | Maryland |
| 23 | Robert R Angle | 14 | Boarder | Laborer | Maryland |
| 24 | John D Vollmer | 68 | Head | Farmer | Maryland |
| 25 | Sarah M Vollmer | 60 | Wife | — | Maryland |
| 26 | Charles Vollmer | 38 | Son | Laborer | Maryland |
| 27 | Minnie J Vollmer | 33 | Daughter | — | Maryland |
| 28 | Harry Vollmer | 27 | Son | Laborer | Maryland |
| 29 | Norman E Vollmer | 24 | Son | Laborer | Maryland |
| 30 | Bessie B Vollmer | 16 | Daughter | — | Maryland |
| 31 | Charles H Smith | 51 | Head | Farmer | Maryland |
| 32 | Jennie E Smith | 44 | Wife | — | Maryland |
| 33 | Elmer C Smith | 23 | Son | Clerk | Maryland |
| 34 | Mary E Smith | 7 | Daughter | — | Maryland |
| 35 | John E Smith | 54 | Head | Farmer | Maryland |
| 36 | Jane E Smith | 42 | Wife | — | Maryland |
| 37 | Arthur E Smith | 73 | Head | Laborer | Maryland |
| 38 | Sarah E Smith | 73 | Wife | — | Maryland |
| 39 | Helen M Jordan | 12 | Granddaughter | — | Maryland |
| 40 | Isaac Smith THIS PERSON | 46 | Head | Laborer | Maryland |
| 41 | Mary E Smith | 44 | Wife | — | Maryland |
| 42 | Edna V Smith | 12 | Daughter | — | Maryland |
| 43 | Catherine L Smith | 8 | Daughter | — | Maryland |
| 44 | Isaac T Jr Smith | 2 | Son | — | Maryland |
| 45 | Joseph D Baker | 35 | Head | Laborer | Maryland |
| 46 | Florence A Baker | 31 | Wife | — | Maryland |
| 47 | Ellen M Baker | 11 | Daughter | — | Maryland |
| 48 | William D Baker | 9 | Son | — | Maryland |
| 49 | John J Baker | 6 | Son | — | Maryland |
| 50 | Daniel L Baker | 2 | Son | — | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)