| Timeline |
| 1946 |
Born 6 July in Wilmington, Delaware |
| 1958 |
Leaves public school, is tutored at home |
| 1963 |
Moves to New York City |
| 1966 |
First one-man exhibition at Knoedler Gallery |
| 1966 |
Serves in the Delaware Air National Guard until 1971 |
| 1968 |
Marries Phyllis Mills |
| 1968 |
Participating artist for the Eyewitness to Space program sponsored by NASA and the National Gallery of Art in Washington, D.C. |
| 1969 |
Admitted into the National Academy of Design |
| 1972 |
Appointed a council member of the National Endowment for the Arts |
| 1974 |
Sketches the Watergate hearings in the Senate, Supreme Court and the trial of John D. Erhrlichman and other defendants |
| 1975 |
Invited by officials of the Soviet Union to tour |
| 1975 |
Joslyn Art Museum in Omaha holds the first full retrospective of his work |
| 1975 |
Member of the board of governors of the National Space Institute |
| 1990 |
Jamie and Phyllis move to a lighthouse in Maine |