RC
Richard Clark — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Richard Clark across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Katherine & William — first a son (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Clark |
| Given Name | Richard P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Civil Engineer |
| Industry | State |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Civil Engineer |
| Township / Ward | Waltham 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| G Clark | Head | — | 47 | ~1883 |
| Richard Clark | Son | — | 22 | ~1908 |
| Ellery Clark | Son | — | 19 | ~1911 |
| Philip Clark | Son | — | 12 | ~1918 |
| Adele Clark | Spouse | — | 46 | ~1884 |
Census Appearances
1910
Middlesex, Massachusetts
Other, age 2
Middlesex, Massachusetts · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard M. |
| Relationship to Head | Son |
| Sex | M |
| 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
Middlesex, Massachusetts
Son, age 22
Middlesex, Massachusetts · implied b. ~1908 — 5 household members
| Surname | Clark |
| Given Name | Richard P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Civil Engineer |
| Industry | State |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Richard Clark across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: mother Katherine Clark (~0.92 confidence) and father William Clark (~0.92 confidence) and father G Clark (~0.92 confidence) and mother Adele Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Katherine Clark
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
William Clark
b. ~1881
Source father
● Household
· direct · ~0.92
Father
G Clark
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Adele Clark
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Clark
Son · 1930 · age 22 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Ellery Clark
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Clark
Sibling · 1930 · age 12
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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel930:0276)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marjorie H. Brown | 17 | Daughter | — | Massachusetts |
| 52 | Sarah Mcdonald | 59 | Head | — | Canada English |
| 53 | Courtney Blanche | 41 | Daughter | Hair-Dresser | Michigan |
| 54 | Charles V. Blanche | 13 | Grandson | — | Massachusetts |
| 55 | Herbert Foster Kelly | 48 | Head | Salesman | Massachusetts |
| 56 | Grace G. Kelly | 46 | Wife | — | Canada English |
| 57 | Pauline R. Kelly | 14 | Daughter | — | Massachusetts |
| 58 | Dorothy G. Kelly | 10 | Daughter | — | Massachusetts |
| 59 | Howard G. Ellis | 48 | Head | Machine | Massachusetts |
| 60 | Edith G. Ellis | 45 | Wife | — | Ohio |
| 61 | Virginia Ellis | 18 | Daughter | — | Massachusetts |
| 62 | Franklin G. Ellis | 12 | Son | — | Massachusetts |
| 63 | Mary W. Gibbs | 77 | Head | — | Massachusetts |
| 64 | William J. Johnson | 44 | Head | Machinist | New Hampshire |
| 65 | Maud M. Johnson | 41 | Wife | — | Canada English |
| 66 | Susan S. Johnson | 5 | Daughter | — | Massachusetts |
| 67 | James W. Thompson | 16 | Step Son | — | Massachusetts |
| 68 | Frank J. Mooney | 42 | Head | Broker | Massachusetts |
| 69 | Grace M. Mooney | 41 | Wife | — | Canada English |
| 70 | Frank J. Jr. Mooney | 21 | Son | — | Massachusetts |
| 71 | Doris M. Mooney | 20 | Daughter | Secretary | Massachusetts |
| 72 | Amelia Mooney | 62 | Mother | — | England |
| 73 | Alfred Olson | 72 | Head | Polishing Dyes | Sweden |
| 74 | Maria Olson | 70 | Wife | — | Sweden |
| 75 | Freda Olson | 39 | Daughter | Machine | Massachusetts |
| 76 | Ivan C. Olson | 37 | Son | Operator | Massachusetts |
| 77 | Daniel W. O'Brien | 43 | Head | Ass. Manual-Custo | Massachusetts |
| 78 | M. Elizabeth O'Brien | 41 | Wife | Teacher | Massachusetts |
| 79 | G. Aldersey Clark | 47 | Head | Gardener | Massachusetts |
| 80 | Adele P. Clark | 46 | Wife | — | Massachusetts |
| 81 | Richard P. Clark THIS PERSON | 22 | Son | Civil Engineer | Massachusetts |
| 82 | Ellery D. Clark | 19 | Son | — | Massachusetts |
| 83 | Philip H. Clark | 12 | Son | — | Massachusetts |
| 84 | Robert H. Borth | 27 | Head | Machinist | Massachusetts |
| 85 | Evelyn P. Borth | 26 | Wife | — | Massachusetts |
| 86 | Joyce E. Borth | 2 | Daughter | — | Massachusetts |
| 87 | Harrison Thomas | 39 | Head | Machinist | Maine |
| 88 | Doris A. Thomas | 37 | Wife | — | Massachusetts |
| 89 | Cleveland S. Thomas | 17 | Son | — | Massachusetts |
| 90 | Virginia Thomas | 16 | Daughter | — | Massachusetts |
| 91 | Frank P. Kenney | 51 | Head | Printer | Massachusetts |
| 92 | Mary C. Kenney | 49 | Wife | — | Massachusetts |
| 93 | Constance Kenney | 15 | Daughter | — | Massachusetts |
| 94 | Michael J. Hession | 60 | Head | Caretaker | Irish Free State |
| 95 | Gertrude Hession | 58 | Wife | — | Irish Free State |
| 96 | Marie G. Hession | 30 | Daughter | — | Massachusetts |
| 97 | Agnes G. Hession | 28 | Daughter | — | Massachusetts |
| 98 | Alice M. Hession | 26 | Daughter | — | Massachusetts |
| 99 | Mary E. Pontas | 63 | Head | — | Massachusetts |
| 100 | Marie Pontas | 30 | Daughter | Bookkeeper | Massachusetts |
Pedigree Summary
Richard + 2 siblings
Gen 1 · 4 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)