Search All NYTimes.com. Anne Wolf Cochran, a daughter of Mr. and Mrs. James A. Cochran of Falls Church, Va., was married yesterday to William Charles Hamilton, the son of Mrs. Joseph S. Iseman of Rye, N.Y., and the late William H. Hamilton.
1 Conjoined twins occur in approximately one in 50,000 births, and the majority do not survive (they are stillborn).
Multiple Pregnancy - Twins, Other Multiple Births. Print. Print. There are two types of twins: identical and fraternal (non-identical). Scientists use the terms monozygotic and dizygotic because these terms are biologically meaningful.