References
edit- ^ https://www.google.com/books/edition/District_of_Columbia_Dental_Society_Jour/x_vbAAAAIAAJ?hl=en&gbpv=1&bsq=%22Spry+O.+Claytor%22+-wikipedia&dq=%22Spry+O.+Claytor%22+-wikipedia&printsec=frontcover
- ^ https://chroniclingamerica.loc.gov/lccn/sn83045462/1955-02-27/ed-1/seq-75/#date1=1777&sort=relevance&rows=20&words=Claytor+Spry&searchType=basic&sequence=0&index=3&state=&date2=1963&proxtext=spry+claytor&y=0&x=0&dateFilterType=yearRange&page=1