Sir Isaac is a thoroughbred horse born in Australia in 2021. Race horse Sir Isaac is by Finn Mccool (IRE) out of She's Someone (AUS) , trained by Stephen Lenehan. Sir Isaac form is available here. Owned by S Lenehan, Mrs A M Lenehan, J Mahoney, Ms G Mibus, G D Mibus, W L Collihole, Mrs V L Lenehan & R Grieger.