Mannahill Boy is a thoroughbred horse born in Australia in 1992. Race horse Mannahill Boy is by Regal Biscay (AUS) out of Sweet Lyric (AUS) , trained by V J Thompson. Mannahill Boy form is available here. Owned by A N VANDERKAMP, MISS M & MRS V L HARDING, D R ALLENBY, C J DAVIES & B A GOREY..