Hi there Kristen! For more information on each of your bottles - check out the links below:
Cutty Sark: http://www.whisky.com/brands/cutty_sark_brand.html
Chivas Regal: http://www.whisky.com/brands/chivas_regal.html
Bell's Blended Scotch Whisky: http://www.whisky.com/brands/bells_brand.html
At this time, Whisky.com is not offering valuations, however, we can try to have your bottles dated for you. We will need you to post photos and if help is needed, let me know. Also, Cutty Sark, Chivas Regal and Bell's are all common brands - widely available today, therefore not going to be attractive to any collector (unless you have an very old bottle which then might gain more attention).