I don't know if a picture of the grocery store still exists. I'll ask around. Yes, Mudville is their home base.
Edward M Mccreight, 5083 Wildwood Dr., Southaven, MS 38671, phone: (662) 349-3553

Linda L Eanes, 6791 Franie Ln, Arlington, TN 38002
phone: (901) 388-4976

The following information taken from Tennessee State Marriages, 1780-2002:

Harriet Ross McCreight= Robert Miller, 7 Sep 1848 Tipton
William Wyatt McCreight= Hettie E Anderton, 5 Feb 1903 Tipton
Pauline McCreight= Roy Williams, 11 Nov 1926 Tipton
Thelma Matthews= (Roger) Pete McCreight, 19 Jan 1935 Tipton
O H McCreight= Amanda J Merrell, 4 Dec 1860 Shelby
Virginia McCreight married a Bishop (date?)
There are other listings, but I don't know how they connect to this family!