In this episode, Potter's son-in-law's name is Bruce Ennis, however in the season 11 M*A*S*H episode Strange Bedfellows his son-in-law's name is Robert 'Bob' Wilson.
In the season 7 M*A*S*H episode The Party, Klinger states that his mother speaks no English and knows only what the family tells her in Arabic (confirmed by BJ's wife, Peg in her letter afterwards). However, in this episode she speaks perfect English with no accent. Now, it is not inconceivable that she could have learned to speak English during the few years that Klinger was overseas, but she would still have a considerable accent.
In the season 7 M*A*S*H episode The Party, Klinger states that his mother speaks no English and knows only what the family tells her in Arabic (confirmed by BJ's wife, Peg, in her letter afterwards). However, in this episode she speaks perfect English with no accent. Now, it is not inconceivable that she could have learned to speak English during the few years that Klinger was overseas, but she would still have a considerable accent.