A row of fifty Norway spruce trees lines the main driveway leading to the farm. These trees represent the fifty U.S. states, and were given to Eisenhower as birthday presents from each of the state Republican Party chairmen in 1955. The furthest one from the house was the tree representing Texas, and it was seen as a mark of Eisenhower's recovery that he was able to walk that far after his heart attack.Walsh p. 127
