In preparation for the redesigned Survey of Income and Program Participation (SIPP) 2014 with an event history calendar (EHC), the Census Bureau conducted a field test in 2011. This evaluation compares the veterans and active duty statuses and periods of service distributions provided by the 2011 SIPP-EHC field test with the distributions of these variables in the SIPP 2008 survey (waves 5 and 7) and the 2010 American Community Survey (ACS). Overall, the percentage of active duty military respondents is very similar between SIPP-EHC and SIPP 2008. However, both SIPP 2008 and geo-matched ACS 2010 identify a larger percentage of veterans compared with SIPP-EHC. Additionally, both SIPP 2008 and geo-matched ACS 2010 identify larger percentages of respondents with periods of service before May, 1975 compared with SIPP-EHC. The respondents in SIPP 2008 and geo-matched ACS 2010 were generally older than the respondents in SIPP-EHC. This age difference may contribute to the larger percentage of veterans and the older periods of service identified in SIPP 2008 and geo-matched ACS 2010.