Donna, This is what I found on page 78 of the book "A Humorous History of White County." I copied it exactly as it was in the book. (Including William R. Johnson, April 27, 1906 being listed twice in the order as it was ) This is the only information that I found on Joseph Fillinger. Since the information came from a chapter: White County Post Offices, I am assuming that Bliss is the name of the post office and the individuals were the postmasters for those years listed. I do not not know where Bliss was located.
Bliss Joseph H. Fillinger, July 7, 1887; James W. Mozeley, December 14, 1887; Lewis Patterson, November 25, 1903; Levi F. Hunt, April 20, 1904; Robert D. McDougle, March 1, 1906; William R. Johnson, April 27, 1906; November 15, 1907 mail to Stevens Creek. Reopened December 25, 1907. William R. Johnson, April 27 1906; George W. Juddlestone; Allen W. McCauley, April 14, 1909, mail to Heffington - August 31, 1914.