For the Harvard Referencing style, authors are all capitalized e.g., ACITELLI, L. K., ROGERS, S. & KNEE, C. R. 1999. The role of identity in the link between relationship thinking and relationship satisfaction. Journal of Social and Personal Relationships, 16 , 591-618.
The Endnote “Harvard” output style file (date last modified Friday, November 13, 2015) is correctly formatting author names in uppercase letters (refer to attached image). If you’re using an outdated output style file suggest you download and install the latest version available at the Endnote support site: http://endnote.com/downloads/styles