[2] She received an Associate in Arts in micro computer systems from Prince George's Community College in 1992.

[4] Harrison won the Democratic primary to fill the seat on April 2, 2008, edging out Edmonston mayor Adam Ortiz by 137 votes.

[7] She declined running for either of the two at-large positions on the council, instead announcing her candidacy for the Maryland House of Delegates in district 24 on December 14, 2017.

[13] In 2011, following a proposal to open a casino at Rosecroft Raceway, Harrison co-sponsored legislation to ban slots in Prince George's County.

[16] In 2013, Harrison, alongside county executive Rushern Baker, wrote a letter to Dan Tangherlini to endorse a plan to move the headquarters for the Federal Bureau of Investigation to Greenbelt, Maryland.