Rachel Amelia Williams, wife of Henry Newton Williams, was my greatgrandmother. The Williams family does take some convoluted turns. According to some of my mother's records and notes, Rachel's father's name could have been Silvesta rather than Silidone. It has been noted in some of the Census records that he could neither read or write, so that could account for the different spelling of the name. I have information on Rachel's family and their descendents, but like you have been unable to locate any info on the siblings or parents of SIlidone (Silvesta).A descendent of Conzetta (sister of Rachel Amelia) has a webite on MyFamily.com. Please email me.