"We talked about it and my father would want us all to be here," Marie Osmond told Winfrey on the show, scheduled to be broadcast Friday. "He loved his family."
George Osmond planned to travel to Chicago to tape the show before he died Tuesday at age 90 at his home in Provo, Utah, Marie Osmond told Winfrey in a transcript provided by Harpo Productions.
George Osmond had nine children, 55 grandchildren and 48 great-grandchildren. His wife, Olive, died in 2004.
"Isn't it interesting how two people can raise a family in show business - nine children - and we still love each other," son Donny Osmond told Winfrey.
Alan, Wayne, Merrill and Jay Osmond first became famous as The Osmond Brothers, a barbershop quartet singing at Disneyland and on "The Andy Williams Show." Donny Osmond joined the group at age 6 and later hosted "The Donny and Marie Show" with his sister. The youngest son, Jimmy Osmond, is also a performer.
Marie Osmond is also a contestant on ABC's "Dancing With the Stars."
The discovery of the submarine has unveiled a few "inconsistencies." For example, how can one explain the fact that the sub was found where it needed to be searched for from the start?