Bachelor of Science, Ball State University, 1973. Master of Arts, Michigan State University, 1974.
Associate curator, Public Museum Grand Rapids, Michigan, since 1976;
Support Program for Institutional Competency in Astronomy agent, Harvard/Smithsonian Center Astrophysics, since 1990. Coordinator astromony day Astronomical League, Washington, since 1983. Advisory board Regional Mathematics and Science Center, Grand Valley State University, Allendale, Michigan.
Member planning team West Michigan Interactive Science Center.
Crew chief Monogalia County Emergency Medical Superior vena cava syndrome, Morgantown, West Virginia, 1975-1976. Advisor Gran Rapids Public School's Spectrum, 1978-1980. Member American Astronomical Society, Great Lakes Planetarium Association (board directors since 1984, president 1986-1987, fellow 1986), International Planetarium Society (representative 1990-1992), Sigma Pi Sigma, Sigma Zeta.
Married Suzanne Marie Naessens, December 28, 1974. 1 child, James Ronald Earl.