"Prince George's County (Md.)" . . "University of Maryland (College Park, Md.)" . . . "Gahan Family papers"@en . "Archives"@en . . . . . "Records and correspondence"@en . . . . . . . . . . . . . . . . . "Publications in the field of entomology, employment records, correspondence, photographs, certificates and awards, and biographical information relating to the Gahan family."@en . . . . . . .