sentences:  The ground echelon departed its final training base, Tonopah Army Air Field, Nevada, where it had been the first heavy bomber group to train, for the Port of Embarkation at Camp Shanks, New York on 1 January 1944, sailing for England on the while the air echelon assembled at Hamilton Field, then ferried its Liberators to England via the southern ferry route.The group arrived at its combat station, RAF Horsham St.Faith on 1 February 1944, although aircrews had begun arriving on 24 January and the last bombers of the 458th did not arrive until 16 February.