There are numerous online resources, but one good one is http://scg.co.sarasota.fl.us/historical_resources/School_of_ . Unfortunately, I think that you will find that many orf these buildings are no longer standing.
I am a big fan of modernist architecture, and if you are seeking a modernist home in Sarasota I would be happy to help you with your search.
COLDWELL BANKER RESIDENTIAL REAL ESTATE
423 St. Armands Circle
Sarasota, FL 34236
http://www.facebook.com/LidoShoresNeighborhoodAssociation : super fabulous homes with amazing setttings.
So fun in this area as it's perfect for birding, dining, breezy sail boat days and lush gardens.
Sandra LaFlamme, Realtor
Let me know if these are what you are looking for.
Norm Luppino, Realtor,
SaraBay Real Estate
I performed a search for a licensed contractor by the name of Art Twitchell in Florida. He does not have a contractor license currently. Here is the web site to check in case the name was misspelled. You may want to check several spellings. https://www.myfloridalicense.com/wl11.asp?mode=1&SID=&am Where did you hear of this builder and how old would the homes be that you are looking for. Many of the builders are no longer in business after the down turn in the market.
Tammy Hayes, Realtor
Green Lion Realty