Sentence:  For Rachel , conceded to be the prettiest of the Szold girls - and she did make a pretty picture sitting in the grape-arbor strumming her guitar and singing in her silvery tones - there was no particular March counterpart ; but both groups were so closely knit that despite <WSD>individual</WSD> differences the family life in both cases was remarkably similar in atmosphere if not entirely in content - the one being definitely Jewish and the other vaguely Christian . 
Meaning of the word marked with <WSD> tags:  being or characteristic of a single thing or person