Noted genealogical researcher, historian and author Warren Bittner will give a workshop and seminar, “Gateway to Germany,” April 7-8 at the Jackson County Genealogy Library, 3405 S. Pacific Highway, Medford. Topics will include German history, historical maps and territories, Meyer’s Gazetteer, German marriage laws and customs. Seating is limited, so early registration is encouraged. To register, call 541-512-2340, go to www.rvgslibrary.org, email reception.JCGL@gmail.com, or stop by the library in person. The workshop will be from 3 to 6 p.m. Friday, April 7; cost is $40 for non-members, $30 for members. The seminar will be from 8:30 a.m. to 4 p.m. Saturday, April 8; cost is $55 for non-members, $45 for members. Both are sponsored by the Rogue Valley Genealogical Society.