I added some extras to make up for my mistake:) These are called CDVs and they are about the size of a playing card. There is only one date and it's on the back of the green card with the lady. It says March 1st, 1876. The others are around that time also. The top two photos are from Vermont and the bottom two photos are from New York. I believe the two siblings are both boys! The baby's sash has been colored blue so I am thinking boy. You can tell with the older boy because of his hairstyle and he has a matching fabric "belt" around his waist. I wonder if the little boys hated wearing "dresses" and having their mother's curl their hair? I bet much fussing went on during picture day morning. The older boy is missing a button on his outfit. I can see him throwing a tantrum and trying to get out of his good clothes! LOL!!