The word "info" covers a lot of ground. Are you more interested in dating the photos, technical information about what cameras and film might have been used, monetary value, or...?
Actually "info" might not be the best word to use here, because based only on what you have posted, it will be very difficult for anyone here to provide anything other than speculation (aka, a wild guess).
The first thing I would do would be to examine the back of the photos. Often times commercially made prints will have a stamp on the back, identifying the studio. Sometimes searching for the studio will yield details about where and when the print might have been made.