1936
Gerdts, William H., Dr. and Mrs., 1863
Gerdts, William H., Dr. and Mrs., 1814
Gerdts, William H., Dr. and Mrs., 1971
Gerdts, William H., Dr. and Mrs., 1970
Gerdts, William H., Dr. and Mrs., 1805
Max Weber, 1919
Gerdts, William H., Dr. and Mrs., 1969
Gerdts, William H., Dr. and Mrs., 1891
