LEWISBURG — Two incumbent row officers and a newcomer for sheriff secured their nominations without any opposition in Tuesday's primary election in Union County.Prothonotary Diane O. Miller with 2,284 votes, Coroner Dominick Adamo with 2,310 votes and Chief Sheriff Deputy Scott Hahn with 2,286 votes were elected as the candidates for the Republican ballot, according to unofficial election results for Union County.All three positions are for four-year terms.The Democratic results had 155 write-in votes for sheriff, 66 for prothonotary and 76 for coroner. The Union County Election Board is reviewing write-ins. The Board of Elections is meeting at 10:30 a.m. Friday for the official count.Hahn announced his intention to run when Sheriff Ernie Ritter said he would not be running for a fifth term. Hahn started as a part-time deputy in 2001 and became a full-time deputy in 2002. He was promoted to sergeant in 2006 by former Sheriff John Shrawder. Hahn was promoted to chief deputy, the second in command, by Ritter in 2009.