1930
Born to Maurice and Constance Antelo Heckscher in Philadelphia, Pennsylvania.
1952
Earns a Bachelor of Arts in mathematics from Harvard University.
1954
Earns a Master of Mathematics from Harvard University.
1958
Is a Fulbright scholar through 1959.
1959
Serves as an instructor at Rutgers, The State University of New Jersey
1960
Earns a Doctor of Philsophy in mathematics from Harvard University.
1960
Transitions from instructor to professor of mathematics at Swarthmore (Pennsylvania) College where he teaches until 1980.
1966
Becomes a National Science Foundation Fellow through 1967.
1980
Becomes a naturalist and conservation biologist with Natural Lands Trust in Media, Pennsylvania.
1995
Is featured in the 25th edition of Who’s Who in the East.
2003
Retires from his profession.
2007
His publication of “Dorothy Kerin: Sign and Significance” appears in the Journal of Christian Healing.
2019
Is featured in the 72nd edition of Who’s Who in America.
2020
Continues to work on Church unity, spirituality, and lectures on science and religion, and write on theology
2020
Contributes articles to professional journals.
2020
Continues to add to his worldwide collection of botanical photographs that he is placing in the public domain.