The city of Lockhart is named after Byrd Lockhart, an assistant surveyor of Green DeWitt and reportedly the first Anglo to set foot in Caldwell County. Lockhart was the site of a victory of the Texans over the Comanche, at the Battle of Plum Creek in 1840.
To know if you need a travel plug adapter to go to Iceland, you have to consider 3 things : the shape of the plugs, the voltage and the frequency of the current delivered by electrical outlets in Iceland. Here are the shape of the sockets in Iceland, and the the types of plugs used in Iceland : type C.
Plug Type E Used in: France, Belgium, Slovakia and Tunisia among others (see complete list of countries on the right) The Type E electrical plug has two 4.8 mm round pins spaced 19 mm apart and a hole for the socket's male earthing pin. The Type E plug has a rounded shape and the Type E socket has a round recess. Type E plugs are rated 16 amps. Note: The CEE 7/7 plug was developed to work with Type E and Type F sockets with a female contact (to accept the earthing pin of the Type E socket) and has earthing clips on both sides (to work with Type F sockets).