Mark's mother was my Aunt Mary.  She and my mother Doris, and our Aunt JoAnn were sisters and the best of friends.  They were always on the phone together.  Two would talk to each other then hang up so one could call the other and tell them everything that was just said.  This is how it worked since 3 way calling did not exist back then.  

Somewhere around 1979 - 1980, I was 9 or 10 which put Mark at about 4 or 5.  I heard Mom on the phone talking to Aunt JoAnn because she had just hung up with Aunt Mary. 

Doris said to JoAnn:

"I have to tell you the cutest story!  Mary said Mark was out in the front yard hollering "Mom come outside!  Mom come here!"  So Mary went out on the porch.  Mark said "Watch this Mom".  He then threw a ball up in the air.  It came back down and he said "SEE!"  Mary said "What am looking at Mark?"  and Mark said "Watch Mom, I'll do it again."  So he thew the ball back up and it came back down. Again he said "SEE!" Aunt Mary said "What is it Mark?  What am I seeing?"  Mark explained "See Mom, I thew the ball to Jesus and he threw it back." 

I have always remembered that story.