"My brothers, my cousins, and I" "My brothers, my cousins and I" Which one is correct?
In the US the serial comma is more often in general use. It is also known as the Harvard comma, as that is part of the 'house style' amd so mandatory in all written work. It is used in the UK too, however, less so generally. It is often known as the Oxford comma in the UK, again due to it being 'house style'. Unless a publisher or company have a 'style' that you must adhere to, either are correct as long as you are consistent through a document in its usage and avoid ambiguity in whichever style you choose. In the above statement there is no ambiguity.