Maybe they mean the first three Osmond children were girls.
I think.
They had nine children: Virl, Tom, Alan, Wayne, Merrill, Jay, Donny, Marie, and Jimmy. Virl and Tom were both born with severe hearing impairments.
Osmond had nine children with his wife Olive:
George Virl Osmond Jr. (born October 19, 1945)
Thomas Rulon Osmond (born October 26, 1947)
Alan Ralph Osmond (born June 22, 1949)
Melvin Wayne Osmond (August 28, 1951-January 1, 2025)
Merrill Davis Osmond (born April 30, 1953)
Jay Wesley Osmond (born March 2, 1955)
Donald Clark “Donny” Osmond (born December 9, 1957)
Olive Marie Osmond (born October 13, 1959, her father’s 42nd birthday)
James Arthur Osmond (born April 16, 1963)
The Osmond Brothers’ career began in 1958 when Alan, Wayne, Merrill, and Jay began singing barbershop music for local audiences in and around Ogden (Jay was only 3).
They were later joined by younger siblings Donny and Jimmy, both of whom enjoyed success as solo artists
George and Thomas were never part of the group, thus Wayne was the second oldest of the group.
Marie is the only girl. The nine children born from the union of George and Olive Osmond were Virl, Tom, Alan, Wayne, Merrill, Jay, Donny, Marie and Jimmy.
No, there us only one girl, Marie. Wayne is the fourth born son