Hi.,
1) The section that you are referring in this page http://www.marinsalon.com/team/ann-brewer/ is the team section. You can edit that section by directly going to that page in backed and edit the team page builder modules. Please refer this screenshot http://prntscr.com/ciyq25
2) Are you referring to the testimonials at your homepage? If yes, just open the home page from dashboard and if you scroll to the bottom of the page, you can find the page builder modules of the testimonial section. Please have a look at this screenshot http://prntscr.com/ciyp4w