Flight of the Doves

"A story about a brother and sister who escape from a cruel stepfather in England and search for their kind grandmother who lives in a cottage in Galway, Ireland. For elementary grades" -- summary from WorldCat.

Edited from the feature film "Flight of the Doves"

"While fleeing across the Irish countryside, two orphans are pursued by their villainous uncle, a master of disguises." - from IMDB