This study investigated contributions to the peer-reviewed library and information science (LIS) journal literature by U.S. academic librarian (USAL) authors over a ten-year period (2003-2012). The results were compared to those of two previous five-year studies that covered the time periods of 1993-1997 and 1998-2002 to examine longitudinal trends. For USAL authors as a group, publication productivity, the proportion of peer-reviewed articles contributed to the LIS literature, and sole-authorship declined. Among USALs who did publish, productivity patterns remained similar over twenty years, with a slight increase in the percentage of USAL authors who published three or more articles in five years. The top twenty high-publication libraries from 2003 to 2012 were from public research universities, unlike two earlier studies that found private university libraries among the top twenty.