He became a minister in 1803 in Maytown, Lancaster County, Pennsylvania. Fought in the War of 1812.

Rev. Johann Friedrich Obenhauss or Obenhaussen.
Hallesche Nachrichten says he was a middle-aged man when he came to this country. He was a Hollander and well educated. He was reputed to have been the father-in-law of John Paul Ferdinand Kramer, who was a man of peculiarly unhappy temperament and a most checkered career.

Obenhaussen was licensed by the Ministerium of Pennsylvania at Reading, 1794. The call upon which the license was granted was extended by a congregation in Greenwich township, most probably Grimsville, as he certainly was pastor there; Ziegel in Lehigii county, and New Allemaengel, now Friedens, near Wesnersville. From 1794 till 1801 his residence was Greenwich. In 1795 he had added Weissenburg and Albany. From 1801 on he seems to have resided at Weissenburg. He was ordained at Easton, 1804. From "that time on his name disappears from the roll of ministers. Hallesche Nachrichten, P. 594 says he moved to Perry county in 1806. After that all trace of him seems to be lost. Apparently his reputed son-in-law, J. P. F. Kramer followed him or went with him.

“Rev. J. P. F. Kramer preached at Wirth's Evangelical Lutheran Church (now Salem Lutheran) from 1805-1806, Killinger, Upper Paxton Township, Dauphin County, PA.” (from question posted by Jonathan Wert on Kramer Family Forum via Genealogy.com in 2004. Will try to contact him.)

The Hummelstown church [Dauphin Co.] was organized in 1765 and the first church, a log building, was dedicated on May 16, 1766.4" In 1769 Rev. Michael Enterline became pastor. Rev. William Kurtz was pastor, 1781-1795. From 1795 to 1804 there was a vacancy in the pastorate. But David Exstein, parochial schoolmaster, held school in the log church for thirteen years. The following are the pastors in this century: J. F. Ernst, 1804; J. P. F. Kramer, 1807; J. H. Vanhof, 1811 ; Dr. C. R. Demme, 1819-1822. The stone structure still standing, but no longer used by the Lutherans, was erected in 1815-1816.

“The Lutheran and Reformed congregations were the first to avail themselves of the generous donations of the founders of Mifflinville. In 1809 articles of agreement for the erection of a union church at Race and Third Streets were signed. The building was begun the same year, but not completed until 1813. In January, 1882, the union between the two congregations was dissolved, the Lutherans preparing to build a home of their own, the dedication of which took place in December, 1883.
The Lutheran congregation was organized in 1809 as St. John's by Rev. J.P.F. Kramer. Previous to that time the Lutherans had been occasionally served by Rev. Mr. Shelhardt, one of the pioneer pastors of the Susquehanna Valley. Before 1890 the services here were held every four weeks, the German and English languages being used alternately.”

History of Messiah Lutheran Church?Bedford Twp., Bedford County

Messiah Church is unique in being one of the oldest congregations in Bedford County. In E. H. Blackburn's History of Bedford County it is stated that the congregation was organized about 1790. A log church of 30 by 50 feet was erected for worship soon after this date in the same plot of ground where the present building stands. Of interest to many people is the fact that "Indian Eve" is buried in Messiah Cemetery (behind the church). She was Eve Earnest whose husband was massacred by Indians and she and her children were taken captive. After her return she married a Mr. Sammel and lived where the Hinson Farm is now. She cooked the meals for the men building the log church and would hang a red handkerchief on a pole when the meals were ready. Her home was on the next hill in sight of the church. A monument was erected in her memory and appropriate ceremonies held on May 27, 1934. At first this was called the Dunnings Creek or Dutch Corner charge and was no doubt a union church, for the old records show lists of communicants marked Reformed. The first recorded date is October 4, 1812, but part of the page is torn off and the writing is hardly legible. This was a treasurer's record and shows nine entries in two years, so meetings were few and far between. April 18, 1813, is the first recorded Communion date, with 19 members communing and 16 new ones confirmed, J. P. F. Kramer, D. D., officiating.

Some of the names listed and still familiar are Fickes, Reigert or Reighard, Earnest, Sammel, Holderbaum, Fetter, Dibert, Zimmers, Smith, and Hengst. On May 3, 1814, officers elected were: Heinrich Stiffler, John Klotz, Adam Holderbaum, and Heinrich Dibert. J. P. F. Kramer, D. D., of the Bedford Academy served this church until 1815 when a Rev. Mockenhaupt is listed. Oct. 16, 1816, Rev. E. H. Tideman held communion and continued until 1819. Next was Rev. Osterloh, 1821-1825, followed by Rev. Yeager (who could only speak in German) 1825-1841. Rev. Reuben Weiser served from 1841-1846. During this time the second church was built. This was a stone building 38 by 52. The date of dedication is not recorded but it was no doubt in 1844. A record of persons subscribing money for the building lists one page of the Lutheran contributors, one of the German Reformed and one of persons belonging to neither the Reformed nor Lutheran Churches. Quite a few contributions were from Bedford and St. Clairsville. The totals were as follows: $802.43 1/2 Lutheran; $162.75 Reformed; $57.75 others. The following is quoted as written: "Articles of Agreement Between the Lutheran and German Reformed Congregations, for the building of a Lutheran Church in Bedford Twp., Bedford County, Pennsylvania, commonly called Dunnings Creek Church. We the members of the German Reformed Church of Dunnings Creek promise to pay the sums opposite our names on the subscription list for the building of said church. And we, the vestry of the Lutheran Church of said place, proomise to let the German Reformed Congregation occupy the church one fourth of the time, i.e., one Sabboth of each month, of each and every year, so long as we do not need the church ourselves, and so long as peace and harmony exist between the congregations. Signed, Eleventh Day of June, 1843. R. Weiser, Pastor of Luth. Church."