KM
Katherine Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Katherine Murphy across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents John & James — first a daughter (b.~1915), then head of a 5-person household.
Age 15
b. ~1915
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Murphy |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Examiner |
| Industry | Clothing F. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Examiner |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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 1930 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Mary Murphy | Daughter | — | 15 | ~1915 |
| Joseph Murphy | Son | — | 17 | ~1913 |
| John Murphy | Head | — | 45 | ~1885 |
| Katherine Murphy | Daughter | — | 15 | ~1915 |
| Elizabeth Murphy | Daughter | — | 14 | ~1916 |
Census Appearances
1920
None, Maryland
Daughter, age 3
None, Maryland · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 5 household members
| Surname | Murphy |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Examiner |
| Industry | Clothing F. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Spouse, age 23
Baltimore-City-County, Maryland · implied b. ~1917 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Kathrene |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Katherine Murphy across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father John Murphy (~0.92 confidence) and father James Murphy (~0.92 confidence) and mother Katherine Murphy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murphy
b. ~1885
Source father
● Household
· direct · ~0.92
Father
James Murphy
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Katherine Murphy
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Murphy
Daughter · 1930 · age 15 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Joseph Murphy
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Murphy
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Murphy
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus854unit:0926)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph Howard | 59 | Head | Laborer | Maryland |
| 52 | Harriett Howard | 59 | Wife | Home Maker | Maryland |
| 53 | Amelia Brown | 37 | daughter | House Work | Maryland |
| 54 | Charles Johnson | 34 | son-in-law | Janitor | Maryland |
| 55 | Susie Johnson | 31 | daughter | Home Maker | Maryland |
| 56 | Elizabeth Crowdy | 17 | daughter | House Work | Maryland |
| 57 | Joseph Crowdy | 15 | son | Helper | Maryland |
| 58 | Beulah Crowdy | 11 | daughter | — | Maryland |
| 59 | Henson Henry | 37 | Head | Truck Driver | Maryland |
| 60 | Viola Stanton | 34 | House Keeper | Cleaning | Washington D.C. |
| 61 | Margaret Henry | 16 | daughter | — | Maryland |
| 62 | William Henry | 15 | son | — | Maryland |
| 63 | Henry Jr. Henry | 12 | son | — | Maryland |
| 64 | Joseph Henry | 8 | son | — | Maryland |
| 65 | Ruth Henry | 6 | daughter | — | Maryland |
| 66 | Evelyn Stanton | 11 | daughter | — | Maryland |
| 67 | George A. Petrie | 57 | Head | Steam Fitter | Maryland |
| 68 | Flora Petrie | 55 | Wife | Home Maker | Germany |
| 69 | Joe Carson | 55 | Head | Laborer | North Carolina |
| 70 | Martha Carson | 77 | Wife | Home Maker | Virginia |
| 71 | William Smith | 24 | son | Laborer | Maryland |
| 72 | Mary Smith | 23 | wife | Home Maker | Maryland |
| 73 | Lena Baker | 45 | Head | Home Maker | Virginia |
| 74 | Ethel Baker | 23 | daughter | Presser | Virginia |
| 75 | Lenoma Baker | 20 | daughter | Presser | Virginia |
| 76 | Linwood Baker | 19 | son | Laborer | Virginia |
| 77 | James Baker | 14 | son | — | Maryland |
| 78 | Jesse Kemp | 36 | Head | Cleaning & Pressing | North Carolina |
| 79 | Hettie Kemp | 36 | Wife | Home Maker | North Carolina |
| 80 | William Kemp | 16 | son | Helper | North Carolina |
| 81 | Pauline Kemp | 14 | daughter | — | North Carolina |
| 82 | Mary Kemp | 12 | daughter | — | Maryland |
| 83 | Georganna Kemp | 11 | daughter | — | Maryland |
| 84 | George Kemp | 25 | Brother | Laborer | North Carolina |
| 85 | James Walters | 28 | Roomer | Laborer | North Carolina |
| 86 | Paxton Thompson | 30 | Roomer | Laborer | North Carolina |
| 87 | Loyed Oliver | 40 | Head | Stevedore | Virginia |
| 88 | Belle Taylor | 39 | House Keeper | None | Virginia |
| 89 | Roy Oliver | 13 | son | — | Maryland |
| 90 | Dick Jenkins | 50 | Roomer | Laborer | Virginia |
| 91 | Joseph Hauntloury | 42 | Head | Laborer | Virginia |
| 92 | Carrie Hauntloury | 46 | Wife | Home Maker | Virginia |
| 93 | Leo Brooks | 24 | son | Laborer | Maryland |
| 94 | Lathinal Brooks | 23 | wife | Steamstress | Virginia |
| 95 | William Wilkerson | 49 | Roomer | Peddler | Virginia |
| 96 | John J. Murphy | 45 | Head | Wood Worker | Maryland |
| 97 | Joseph E. Murphy | 17 | son | Clerk | Maryland |
| 98 | Katherine Murphy THIS PERSON | 15 | daughter | Examiner | Maryland |
| 99 | Mary Murphy | 15 | daughter | Examiner | Maryland |
| 100 | Elizabeth Murphy | 14 | daughter | — | Maryland |
Pedigree Summary
Katherine + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)