1922 – Born in Somerville, Massachusetts on May 30th.
1930 – His interest in both science and science fiction started when he saw a Buck Rogers comic strip featuring a space ship en route to Mars.
1939 – He grew up in Greater Boston, attending schools in Arlington and Cambridge, finishing Rindge Tech.
1943-1946 – He received his B.S. in astronomy from Harvard and an M. Ed. from Boston University.
– He entered the Army Air Corps Reserve, received pilot wings and lieutenant’s commission at Steward Field, New York and flew 35 combat missions as copilot and pilot in Liberator (B-24) bombers with the 8th Air Force.
1951 – Recalled to active duty, he spent eight months as a squadron executive officer at Bolling Air Force Base and sixteen months as a technical instructor at the Armed Forces Special Weapons School in Sandia Base, New Mexico.
1952 – Mr. Stubbs married Mary Elizabeth Myers.
1953 – His best known story, Mission of Gravity, appeared and has been in print most of the time since.
1963 – Earned his M.S. in chemistry from Simmons College (Sputnik panic).
1972 – He has also painted astronomical and science-fiction art as George Richard. It is assumed by fans that Star Trek honored Hal by naming the U.S.S. Clement in his honor.
1976 – He retired from service as a full colonel.
1987 – He taught high school science for forty years, two in a public school and 38 at Milton Academy in Milton Massachusetts, from which he retired.
– He has served the New England Association of Chemistry Teachers as a Division Chairman, in various positions for its regular Summer Conferences, and finally as President.
– He is an honorary member of NEACT and of Aula Laudis, an honor organization of high school teachers.
1993 – Fossil was published in November, by Daw Books.
2003 – Died on October 29th in Milton, Massachusetts.