Tracking code transitio

Hey peeps, we have a subscriber with a question on analytics. If anyone can provide feedback on this let me know and I`ll pass your information along. "We are working with a client who owns the domain: foodtoursofamerica.com but has been redirecting searches for that domain to each of their specific locations: toursdallas.net and foodtourslv.com. We just built them a new website through wp-multisite where the website uses foodtoursofamerica.com as the primary domain and the locations are now sub-directories: foodtoursofamerica.com/dallas and foodtoursofamerica.com/las-vegas/ We are attempting to connect Analytics before the official launch but are worried we will lose the historical data from each location by connecting this site to the Food Tours Of America GA that was previously not in use. The current GA set up for this company is Account: Food Tours of America > Properties & apps: Food Tours of America, Tours Dallas, Vegas Tours > Views: Not In Use(if Food Tours of America was selected for property). If we embed the tracking code from the Food Tours of America account onto the site, do we loose all the data previously found under the `Tours Dallas` and `Vegas Tours` Properties? What is the best way to go about this transition?"