Helms of Germany and Pennsylvania
Hale Brothers
Helms of Germany and Pennsylvania
Helms of Germany and Pennsylvania Ancestry and Descendants of Three Helms Cousins from Beerfelden Parish
New Arctic Foraminifera Collected by Capt. R.A. Bartlett from Fox Basin and Off the Northeast Coast of Greenland
Recent Foraminifera from Old Providence Island Collected on the Presidential Cruise of 1938
Evidences of Early Occupation in Sandia Cave, New Mexico