A Notion is a thoroughbred horse born in Australia in 2019. Race horse A Notion is by So You Think (NZ) out of The Countess (AUS) , trained by Aiden St Vincent. A Notion form is available here. Owned by Miss C L Mullins, Bonville Thoroughbreds (Mgr: J Mullins), M A Mullins, R R Shaw, B A Shaw, J R Barnett, Mrs D Thompson, A Thompson, C Barnett, T Bazouni, M Olsen, Mrs L M Barnett, JKW Bloodstock (Mgr: J K Weier), S E Notley, J P Clarke, Mrs S L Croft & A St Vincent.