KM
Katherine Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Katherine Murphy across the 1910, 1920, 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Catherine — first a daughter (b.~1908), then head of a 4-person household.
Age 22
b. ~1908
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Murphy |
| Given Name | Katherine B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1908 |
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 1930 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Jeremiah Murphy | Head | — | 52 | ~1878 |
| Mary Murphy | Daughter | — | 24 | ~1906 |
| Katherine Murphy | Daughter | — | 22 | ~1908 |
| Mary Murphy | Other | — | 47 | ~1883 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Katherine V |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Daughter, age 11
Suffolk, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 22
Suffolk, Massachusetts · implied b. ~1908 — 4 household members
| Surname | Murphy |
| Given Name | Katherine B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 32
Suffolk-County, Massachusetts · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Kathryn |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Separated |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Highest Grade | 9 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Murphy (~0.92 confidence) and mother Catherine Murphy (~0.92 confidence) and father Jeremiah Murphy (~0.92 confidence) and father Cornelius Murphy (~0.92 confidence) and mother Katherine Murphy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Murphy
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Catherine Murphy
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Jeremiah Murphy
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Cornelius Murphy
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Katherine Murphy
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Murphy
Daughter · 1930 · age 22 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Mary Murphy
Sibling · 1930 · age 24
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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel943:0416)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James P Powers | 72 | Head | Machinist | Irish Free State |
| 2 | Mary T Powers | 60 | Wife-H | — | Massachusetts |
| 3 | Raymond J Powers | 35 | Son | Teacher | Massachusetts |
| 4 | James P Powers | 29 | Son | Clerk | Massachusetts |
| 5 | Helen M Powers | 27 | Daughter | Operator | Massachusetts |
| 6 | Frances B Powers | 24 | Daughter | — | Massachusetts |
| 7 | Anthony J Powers | 22 | Son | Printer | Massachusetts |
| 8 | Edward J Powers | 16 | Son | — | Massachusetts |
| 9 | James J Murphy | 43 | Head | Conductor | Massachusetts |
| 10 | Anna H Murphy | 46 | Wife-H | — | Massachusetts |
| 11 | James G Murphy | 23 | Son | Accountant | Massachusetts |
| 12 | Edwin C Murphy | 15 | Daughter | — | Massachusetts |
| 13 | Robert J Murphy | 9 | Son | — | Massachusetts |
| 14 | Ellen Hally | 50 | Head-H | Janitress | Irish Free State |
| 15 | Michael J Hally | 24 | Son | Janitor | Massachusetts |
| 16 | Margaret M Hally | 23 | Daughter | Stenographer | Massachusetts |
| 17 | William H Hally | 18 | Son | Messenger | Massachusetts |
| 18 | Helen L Hally | 15 | Daughter | — | Massachusetts |
| 19 | James Hally | 44 | Son | — | Massachusetts |
| 20 | Patrick Murphy | 54 | Brother | Laborer | Irish Free State |
| 21 | Francis T Cahoon | 50 | Head | Engineer | Vermont |
| 22 | Frances A Mccolgan | 23 | Daughter-H | — | Massachusetts |
| 23 | Edward J Mccolgan | 23 | Son-in-law | Laborer | Massachusetts |
| 24 | Jane G Mccolgan | 1 | Granddaughter | — | Massachusetts |
| 25 | Thomas F Maguire | 40 | Head | Janitor | Massachusetts |
| 26 | Anna T Maguire | 38 | Wife-H | — | Massachusetts |
| 27 | Francis Maguire | 15 | Son | — | Massachusetts |
| 28 | Thomas P Maguire | 14 | Son | — | Massachusetts |
| 29 | Joseph A Maguire | 13 | Son | — | Massachusetts |
| 30 | Alice Maguire | 10 | Daughter | — | Massachusetts |
| 31 | John Maguire | 3 | Son | — | Massachusetts |
| 32 | John B Cass | 70 | Head | Laborer | Northern Ireland |
| 33 | Theresa B Cass | 68 | Wife-H | — | Massachusetts |
| 34 | William H Cass | 39 | Son | Laborer | Massachusetts |
| 35 | Emily E Cass | 28 | Daughter | — | Massachusetts |
| 36 | Elizabeth L Cass | 24 | Daughter | Operator | Massachusetts |
| 37 | Phillip Mullaley | 65 | Head | Laborer | Irish Free State |
| 38 | Mary J Mullaley | 64 | Wife-H | — | Irish Free State |
| 39 | Margaret M Mullaley | 22 | Daughter | Representative | Massachusetts |
| 40 | Bridget C Mullaley | 19 | Daughter | Cashier | Massachusetts |
| 41 | John J Runnin | 47 | Head | Fireman | Massachusetts |
| 42 | Margaret B Runnin | 44 | Wife-H | — | Massachusetts |
| 43 | Frank R Doyle | 30 | Head | Clerk | Massachusetts |
| 44 | Dorothy E Doyle | 22 | Wife-H | — | Massachusetts |
| 45 | Jeremiah J Murphy | 52 | Head | Fireman | Massachusetts |
| 46 | Mary G Murphy | 47 | Wife-H | — | Massachusetts |
| 47 | Mary G Murphy | 24 | Daughter | — | Massachusetts |
| 48 | Katherine B Murphy THIS PERSON | 22 | Daughter | — | Massachusetts |
| 49 | James H Mccormick | 62 | Head | Machinist | Massachusetts |
| 50 | Mary E Mccormick | 57 | Wife-H | — | Massachusetts |
Pedigree Summary
Katherine + 1 sibling
Gen 1 · 5 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)