a. Hollywood Cemetary (Harrington, Kent, Delaware, USA). Grave markers.
b. 1850 census of USA. Delaware. Kent. Digital images. familysearch.org.
c. Delaware, USA. DEATH Certificates.
d. 1900 census of USA. Delaware. Kent. Digital images. FamilySearch.org.
e. Delaware, USA. DRAFT Registration.
f. Barratts Chapel Cemetary (Frederica, Kent, Delaware, USA). Grave markers.
1. Title Hollywood Cemetary (Harrington, Kent, Delaware, USA), Grave Markersa; Page Sipple, William L (1850-1921); Text http://image2.findagrave.com/photos/2011/136/35960687_130562880123.jpg; [Source Record]
2. Title 1850 Census of USA, Delaware, Kent; Online Imagesb; Page Milford and Mispillion Hundred - Page 101; Text https://familysearch.org/ark:/61903/3:1:S3HT-6XQC-JYJ; [Source Record]
3. Title Delaware, USA, DEATH Certificatesc; Source Repository Citation, Repository FamilySearch.org [Repository]; Page Sipple, William Luff (1850-1921); Text https://familysearch.org/ark:/61903/3:1:S3HT-D4M3-CNB; [Source Record]
4. Title 1900 Census of USA, Delaware, Kent; Online Imagesd; Page Mispillion Hundred - Page 11a; Text https://familysearch.org/ark:/61903/3:1:S3HY-69YN-37; [Source Record]
5. Title Delaware, USA, DRAFT Registratione; Page Sipple, Frank (1894-1968); Text https://familysearch.org/ark:/61903/3:1:33S7-LB5L-8X9; [Source Record]
6. Title Barratts Chapel Cemetary (Frederica, Kent, Delaware, USA), Grave Markersf; Page Sipple, Frank (1894-1968); Text http://image1.findagrave.com/photos/2008/290/30644788_122426933199.jpg; [Source Record]