I have a very old copy of tintype picture of one of my family members, but have not been able to make a positive identification. Does anyone know a source where the time period could be identified by the hair style and dress worn in the image. It could be my great, great grandmother 1831 – 1872 who was born in Ireland, lived in England for a time and then emigrated to US where she lived with her family on the lower east side of New York City. Jeanne Reilly