Complex sentence: Ford was not required to legally change his name until 1935 after the deaths of his paternal King family grandparents and then it was an Americanized version of Gerald Rudolph Ford.
Split into simpler sentences: Ford was not required to legally change his name. He changed itin 1935 after the deaths of his paternal King family grandparents and then it was an Americanized version of Gerald Rudolph Ford.