(Glenn Martin)      My mama loved my dad for fifty years   She worked along beside him in the fields   He never gave her much but he gave her all he had   Dad's the only reason my mama lived.      Mama's face would light up like a diamond   Each time my daddy just walked in the room   She'd stop what she was doing and put her arms around him   Dad's the only world my mama knew.      Mama never saw her roses bloom   That year the angels came before the robin's song   Mama said, ''She didn't mind goin' on ahead   ''But heaven won't be heaven till dad is home.''      When mama left she left dad a lonely man   But he talked to mama like she was still here   Oh, he'd talk about the hard times   And the good times that they'd had.      As his old mind slipped back across the years   Daddy never plowed his fields again   He just sat down to wait his time to come   And then one day he said, ''I think I hear a choir sing.''      And he closed his eyes and went to live with mom   Lord, I want to thank you for the years   That they were here for me to love   Though it's hard to let 'em go. Lord      You know I'd let 'em go again.   If I could have just been there   And seen my mama's face   When my dad walked in.      If I could have only seen my mama's face   When my daddy walked in...