Complex sentence: After World War I most of the Estate was subdivided and sold to returned soldiers as repatriation farms, between 1919 and 1921 Avondale was also used a farm training centre for the Returned Servicemen.
Split into simpler sentences: After World War I most of the Estate was subdivided and sold to returned soldiers as repatriation farms. Between 1919 and 1921 Avondale was also used as a farm training centre for the returned servicemen.