"In the year 1719 some six thousand are said to have landed, in 1732 ten vessels with three thousand passengers, and Proud avers that in the year 1749 twelve thousand Germans arrived in the Province. Sypher claims that prior to 1727 fifty thousand people, mostly from the Rhine country, had emigrated to the Quaker colony. At the middle of the century the German population of Pennsylvania was about one-half the whole. Not until 1717 was any record of passengers kept, but as the stream began to flow in large mass the wise precaution of Lt. Governor Keith, requiring all immigrants to take the oath of allegiance and be registered in Philadelphia, furnished the historical data which the late Mr. I.D.Rupp has industriously gathered and embodied in his valuable Thirty Thousand Names. These lists of male immigrants over sixteen years of age began in 1727. It is possible they are incomplete. as there are gaps that may, and yet may not be explained, since these vessels all arrived at the same period of the year. Thus there are no records between October, 1727, and August 1728; September 1728, and August,1729; September, 1729, and August, 1730. In the last three weeks of 1732 no less than 1,500 people arrived, while in August and September, 1733. 1,369 are reported.