For more information on sources and notes on the families, check SOURCES below the table.
| Ancestry of Robert Ludlum | |
|---|---|
| 1 |
Robert Ludlum,
b. New York City, New York, New York, 25 May 1927,
d. Naples, Collier, Florida, 12 March 2001,
  md. probably New Jersey, 1951, Mary Ryducha. |
| 2ND GENERATION (PARENTS) | |
| 2 |
George Hartford Ludlum,
b. Passaic County, New Jersey, 1884,
d. (probably) Newark, Essex, New Jersey, 1934,
  md. |
| 3 | Margaret Wadsworth, b. Passaic County, New Jersey, 1885 |
| 3RD GENERATION (GRANDPARENTS) | |
| 6 |
Joseph Wadsworth,
b. England, about 1858,
  md. about 1878 |
| 7 | Margaret, b. England, about 1859 |
SOURCES CONSULTED
This is a listing of any materials other than census, vital records, etc., that were consulted during the research of this tree.