How many posthumous number one songs have there been in rock and roll history? I can only think of "Sittin' on the Dock of the Bay" and "Me And Bobby McGee." Are there others?

The song "Time in a Bottle" had been featured over the closing credits of the ABC made-for-television movie She Lives!, which aired on September 12, 1973, merely eight days before Croce's death. That appearance had generated significant interest in Croce and his music in the week just prior to the plane crash. That, combined with the news of the death of the singer, sparked a renewed interest in Croce's previous albums as well. Consequently, three months later, "Time in a Bottle", originally released on Croce's first album the year before, hit number-one on December 29, 1973, the third posthumous chart-topping song of the rock era following Otis Redding's "(Sittin' On) The Dock of the Bay" and Janis Joplin's recording of "Me and Bobby McGee".

https://en.wikipedia.org/wiki/Jim_Croce#Legacy

This lists many posthumous chart toppers.

https://en.wikipedia.org/wiki/UK_Singles_Chart_records#Posthumous_number_ones