Penn arrived in Pennsylvania in August, 1732, and organised the purchase of some of the lands at the outskirts of the Pennsylvania colony. He met with some of the local Indian chiefs and tried to keep the peace as immigrants poured into the countryside north and west of Philadelphia on the Susquehanna, Schuylkill, and Delaware Rivers. Many of the Indians did not want to sell their land, and had not heard of William Penn's 1686 treaty. Finally in 1737 Acting Governor James Logan convinced several Indian Chiefs to confirm the 1686 deed, which gave the Penns the land west of the Delaware River to the extent that a man could walk in a day and a half. Logan hired several men to walk the measure, but they walked west at a very fast pace and the Indians felt cheated. Logan and the Penn sons including Thomas were later criticized by some for this "Walking Purchase" and their questionable treatment of the Indians. Part of the difficulty lay in the conflict with the French who laid claim on the back country west of Pennsylvania, and the ensuing hostilities of King George's War (1744–1748) and the French and Indian War (1754–1763). Penn lobbied against Quaker efforts to make peace with the Iroquois and Algonquian tribes some of whom were allied with the French. The proprietor Penn brothers sold much of their western lands to European settlers, who did not know of the controversy and as a result, may have become resentful of the proprietors.