It has been estimated that many tens, and perhaps hundreds of thousands of living Australians are direct descendants of two Black African Convicts who arrived on the transport ship Alexander with the First Fleet to Australia in 1788. The men were John Randall and John Martin. Their descendants call themselves the Randall/Martin Family. They can claim two things, first to be Australia's first multiracial family in the modern era, and second to be one of the most successful of all the First Fleet families. Many people are surprised at the notion of there being Africans with the convicts, but the original written sources have many references to them. Estimates of their number range from ten to twelve with perhaps a few more counting those of indeterminate racial origin. The two were given adjoining land-grants at North Parramatta in 1792 at the end of their sentences, and both married convicts from the ship Neptune of the Second Fleet. John Randall had three known surviving children, Frances, Mary and John. Mary eventually married John Martin and they have many descendants. Frances her sister, married John Aiken (also a man of colour) and had many children as well. Both sisters had children to men other than their husbands. These relationships and others have produced the large number of descendants.