Re: ALLEGER, William - Missouri
The Slack family tree is here http://pages.sbcglobal.net/tohlen/roots/wmainhpg.htmhttp://pages.sbcglobal.net/tohlen/roots/wmainhpg.htm
The family i have connected Giles Alleger to is an Allegre family .Giles is living with his father Robert (Alaga) and mother Nancy in 1850 census of Linn Co. mo. Robert married in Indiana marriage record ( RobertyAllegirNancy Philips 10-30-1833) Giles wasborn in Indiana . Roberts father is Giles Allegre , Giles father is Matthew .
Is this the line you have? As well as the Slack connection ,Nancy Alleger , Robert's sister was my 4 x gr grandmother she married William Ray in Garrard Co. Ky.