Does anybody know these people?

[JoshuaM]

My family used to know a family with the last name Okuma, because my sister knew the daughters, and then they moved overseas because their dad got a job. Because of that, there was no more contact. I had forgotten of them until recently, when something triggered my memory. The daughters were Kristen, Sara, and Emily. Sara and Emily look almost identical, but I am pretty sure they are not identical twins. If anybody knows them, let me know, I would like to find out what they are doing these days and also relay that information to my sister.

Thanks.