My grandfather's name is also Izett McCalla. He is the son of Izett Ephram Montrose McCalla, from Bellas Gates, St. Catherine, Jamaica. I beleive that your grandfather is my great-grandfather. I know my grandfather had three half siblings. One older brother named Henry who moved to England, and two sisters, one who is still in Jamaica, but I forgot what his sisters names are. I tried to email you but my letter was returned, if you read this please contact me I would love to compare notes.