I go with McGinnis and here is why:
" 1769- Sept Court-p 39(238) William McGinnis Accounts Current. Ordered that William Thompson, Armistead Wotlington & John Williams do settle an Accounts Current of the estate of William McGinnis, decd & that Robert Wooding, Gent. Admr do deliver up to William Green & Alexander McGinnis part of the sd estate. Thos. Tunstall, D. Clk. 26 Dec 1767. Balance divided between eight orphans giving each child 24.17.8. Signed: Wm Thompson, Armistead Watlington, John Williams. Returned: 19 may 1768. CHIARITO WILL BOOK 0 1752-1773 HALIFAX CO., VA.
1776 Sept 19 - Halifax Co., Va. pg 115 - Nathaniel Pass of Halifax to JOHN STANLEY of Halifax 131 acres for 100 pounds in Halifax, being part of a greater tract containing 231 acres patented on Jul 25, 1749 to William McGinniss, and is the part which his son William sold to Nath. Pass, to be held by said Pass according to the dividing line made by the last mentioned Wm. McGinnis and the said Nath. Pass. No Witnesses. Allice, the wife of said Nathaniel, and Elizabeth McGinnis, voluntarily relinquished all right of dower to the lands conveyed. Recorded Sept 19, 1776."Source: VPB27:290. Online image LVA. Abstract by J. Horsley. Comments in brackets added
Alsey and her sister couldn't have relinquished all right of dower to the lands, if they weren't William McGinnis daughters and heirs.
Hope this helps