There are older boomers and younger ones.The latter of these tend to separate themselves from the former.
“A third of Baby Boomers born between 1956 and 1964 actively identified as members of Generation X.” -Metlife
So, while Generation X is largely regarded as those born from early 1960s (61-81 and 65-79) to early 1980s, we can also consider many of those born from 1956-1964 as willing Gen Xers, at least. Welcome the willing.
Metlife Market Institute. Boomer Bookend: Insight Into the Oldest and Youngest Boomers” PDF. MetLife. February 2009. https://www.metlife.com/assets/cao/mmi/publications/studies/mmi-boomer-bookends.pdf Web. 18 Jun. 2016
Strauss, William. Booknotes. “Generations The History of Americas Future”. CSPAN. 14 April 1991. http://www.booknotes.org/Watch/17548-1/William+Strauss.aspx 18 June 2016
Wikipedia contributors. “Generation X.” Wikipedia, The Free Encyclopedia, 26 Jun. 2016. https://en.wikipedia.org/wiki/Generation_X#cite_note-8 Web. 27 Jun. 2016.