Have you got a 3-in-one printer? If you have, like an Epson, or a Canon, then the quality of scan that you can get from one of those is outstanding. Scan at 600dpi, and select and scan each one individually, the quality will be more than good enough for repro, and if the photos are quite small, then enlarge them as well, maybe 200%, if they're around 6"x4", or smaller. You'll end up with files of maybe 20Mb, I used to reckon on an A4 scan at 300dpi producing a 40-50Mb file, and you can save them as TIFF or EPS files.
I didn't use a scanner/printer/whatever, BTW, I scanned using a Crosfield 6250 drum scanner. About £64,000, if I recall correctly.
If they're old mono photos, they're likely to have a fair amount of damage, cracking, missing emulsion, silvering of the surface, spotting, etc. While its very tempting to start retouching them, don't. Believe me, it takes a lot of time, experience and skill to do without it being very obvious that the photo's been messed with, and it's far better to leave as-is, as part of the photo's history, than to cock it up.
Retouching scans for high-quality repro used to be my job, and I did thousands, so I have a bit of experience, and I know how easy it is for the ham-fisted to leave worse damage behind; a work colleague thought he could do what I did.