Hans was born about 1707, location unknown.  In 1748, he was in Reutlingen, Wurttemberg, Germany.  This village is located about 20 miles directly south of Stuttgart.  According to records found in Philadelphia, Sebastian Leininger, in the company with others, left Reutlingen about the 4th of May 1748, traveled down the Neckar and Rhine rivers to Rotterdam.  The people with whom Sebastian and his family were traveling with were Hans Jorg Hag and family, Hans Bernard Slotter and his cousin Ann Slotter. Hans Bernard Slotter drowned and his codicil was signed by Hans Jorg Hag.

Hans arrived in Philadelphia on September 1748 aboard the ship Hampshire.  His age on arrival was recorded as 41 and he was accompanied by his wife and 6 children, none of them named.  The ship listed the spelling as "Yerich Hack", but George could write and signed both the Oath of Allegiance and the Oath of Abjuration as "Hans Jerg Hag".     George states that he came down the river Rhine, which borders on the Palatinate and Badan- Wurttenberg areas of Germany.

George remained in Philadelphia temporarily, as did many of the new arrivals, before moving to northern Bucks County where he filed a land warrant for 25 acres.  This warrant is dated 3 October 1751, but it was not unusual for a settler to live on or more years on a piece of land before receiving the warrant.  George later acquired additional land to increase his farm to 88 acres.  This area became a part of Lehigh Township, Northampton County, in 1752.  Worthy of note is that plat #10 was owned by William Best.  The Haag and Best families intermarried and owned adjacent farms after they migrated to Westmoreland County.  These two families were among the fortunate German settlers that survived massacre by the Indians during the turbulent 1750's in Northampton County...... It is impossible to accurately trace the habitant of the Haag and other pioneer families i.e. Willems, Frantz, Oderman, and Yearien, in Lehigh Township during the 1750's since they were constantly moving about to avoid attacks by the Indians.

In a petition from Lehigh Township, Northampton County, dated 5 October 1757, signed by George Haag and Jacob Haag, they requested assistance from Lt. Governor William Denny in their fight against the Indians.  Also signing the petition were Jacob Bricker, Michael Kepple, William Detter, George Wannamacher, John Dorn and Simon Drum, all names that settled in Westmoreland County in the 1770's, along with Conrad Haag.