Lucy says she saw Eddie Albert in "The Music Man." In 1959, Albert replaced Robert Preston in the Broadway production of "The Music Man."
When a preoccupied Lucy is idle at her desk, she tells Harry she's worried about Eddie Albert. Harry tells her to get busy and let Margo worry about Eddie Albert. Margo Albert was a Mexican-American actress born as María Marguerita Guadalupe Teresa Estela Bolado Castilla y O'Donnell - so she simply went by the singular moniker Margo. Margo appeared in a 1958 installment of "The Westinghouse-Desilu Playhouse" with Eddie Albert which was hosted by Desi Arnaz. The following year, she was seen in another installment with Arnaz as a co-star.
Albert's wife Margo's black and white photo is behind the sofa of the living room. Next to it is a photo of Albert's son, Edward Laurence Heimberger (aka Eddie Albert Jr.), age 23. In 1972, he was launched to fame from his portrayal of blind Don Baker in the film "Butterflies are Free," for which he won a Golden Globe. He died of Alzheimer's Disease in 2006, one year after his father's passing.
Lucy says she saw Eddie Albert's house on a tour of the movie stars homes. Mary Jane asks Lucy if that was the tour where she sneaked into Rock Hudson's backyard to steal an orange. This is a variation on when Lucy Ricardo took a tour of the movie stars homes and sneaked over Richard Widmark's wall to steal a grapefruit in "The Tour" (ILL S4;E30).
Eddie Albert died of Alzheimer's, not his som.