CALLAHAN, Thomas F., beloved husband of Eileen Callahan (nee Lyons)  for 51 years.  Loving father of Virginia O'Connor, Thomas J.,   Robert P., John J. and Neil J. Callahan, dear father-in-law of  Neil J. O'Connor, Cathy, Sue and Brenda Callahan, loving brother of  Sr. Thomas Marie, S.C., also survived by 17 grandchildren and one  great-grandchild.  On Saturday, March 19, 1994.  Visitation B.J.  Meyer Sons Overlook Funeral Home, 4841 Glenway Ave., (next to St.  Teresa Church) on Tuesday, 5-8 P.M.  Mass of Christian Burial on  Wednesday, 10:30 AM, St. Teresa of Avila Church.