In Lithuania: Siauliai County

Siauliai county is made up of Siauliai city and six district municipalities: Siauliai m., Radviliskis m., Pakruojis m., Kelme m., Joniskis m., and Akmene m. If your ancestors come from this county, or you just have questions about this region, please discuss in this forum.

Wikipedia page for Siauliai county.
Siauliai County Public Library website (in English).

2001 Census
Siauliai County's rural settlements and their inhabitants.

Lithuanian Army Records for the Wars for Independence (1919-1920)
This site is in Lithuanian, but it is a valuable resource in finding ancestors who stayed behind in Lithuania, or emigrated later.  It lists
volunteers for the Lithuanian Army during the Wars for Independence. 
The link below will take you to the names beginning with "A".   Just
click on the first letter of the surname for which are searching.

Fulfillment of military service earned the soldier free land.  The descriptions
generally give a certificate number, and where the land was granted. 
Birthdays and relative information may also be listed.

http://www.versme.lt/sav_a.htm