Some time ago I wrote to Bushey, the town in Hertzford,England, and from the town historian received this reply " there is not now any Busheys in the town and she could not find any records. But she did say that many who immigrated from there would say they were so and so from bushey, this getting their surname from the town. It, the town is known for its art. I also found a relative who came into canada from Liverpool. I would assume until further proof that the name is English or Scott (my father-in-law said they were descendant from Scottland, which could be true as it belonged to England. Maybe this will help you to look in the right direction. Good Luck!