↑ Macoupin County Court Record Volume 3, 219, 8 Mar 1847.
"that whereas William F. Dugger of the county of Macoupin and State of Illinois died intestate as it is said on or about the 6th day of March A.D. 1847"
↑ Tombstone Revelations in Macoupin County Illinois, 74, 1993.
Macoupin County Historical Society Comittee, Tombstone Revelations in Macoupin County Illinois. 1993: Stoughton Newspapers, Inc., Stoughton, WI. volume VI, page 74. Call No. US/CAN 977.383 V32t, FHL, Salt Lake City, UT