George was born in Mexico and lived there for about the first three years of his life. His parents were American Citizens, and I’ve never seen any evidence that they ever renounced their citizenship or became citizens of Mexico.
About five.
George Wilcken Romney was born in Colonia Dublán, Mexico in 1907. His parents, Gaskell and Anna Pratt Romney, left Mexico in 1912.
1912 was a fairly common date for LDS repatriation due to the Mexican Revolution, which had started in 1910.