In addition from the History of Collin County by Stambaugh p70. "Blackmore & Thompson followed him to a grove northwest of the present Van Alstyne, where they shot him and took his money and horse." The murderers fled to Stewart Malloy's home north of McKinney where they were arrested by Sheriff Simpson and a posse from Grayson Co. Held in the McKinney jail for a few days and then returned to Sherman for trial etc. The History of Collin Co Book quotes from the following two sources: McKinney Dailey Courier-Gazette,Dec.22,1906...History of Grayson Co.,p143 by Lucas & Hall. I have not seen the entire account from the McKinney paper and the Grayson County book and do not know if it says where Bill Wilson may have been buried. Surely a Sherman paper would have recorded the funeral.
I can scan and send a picture of Colonel Wilmeth's old house If you would like to see where Bill Wilson spent his last night.