Born in London, Ontario, Nancy began pursuing her singer/songwriter career when she moved to Toronto in the early 70's.  She worked briefly with Leonard Cohen in Nashville and then began performing at festivals and clubs throughout Ontario, opening concerts at Massey Hall for Chris de Burgh and J.J. Cale.  She made appearances on many of the current days' TV shows, performed in the movie "Silent Partner" and eventually signed a publishing deal with Chappell Music Canada in the early 80's.  Nancy was an original member of Prairie Oyster while continuing to maintain her performing act "The Nancy Simmonds Band".  She left Canada in 1987 to live in Carpinteria, California for the next 16 years where she was involved in animal rescue as well as maintaining her writing and producing career.   Her songs have been covered by Melissa Manchester, Ricky Van Shelton, Rosemary Butler, Alannah Myles, Christopher Ward, Joan Kennedy, Quartette, Adrian Zmed, Colleen Peterson and Veronique Believeau.  She has received writing awards for the multi-million selling CD "Alannah Myles" and "Song Instead of a Kiss". In 2002 while performing at historic "Fiesta Days", she won the Santa Barbara Songwriting Contest.  She is the winner of The USA Songwriting Contest 2010  along with Alannah Myles.

Between 2003 and 2004 she produced three CDs from the catalogue once known as All Breed Dog Songs and now release as Musical Tails, 1st, 2nd and 3rd Litters.  There are over 120 dog breed songs available through iTunes for individual downloads.

In 2005 she co-produced the late Colleen Peterson's last CD with David Bradstreet called “Postcards From California” a collection of songs written and recorded in her studio in California with Colleen and other Canadian writers Alannah Myles, Christopher Ward, Robert Priest and Cyril Rawson.

In 2007 she and David Bradstreet produced her first release, “Debut,” on Joe Tucker Records.  In 2009 she completed the 10th "Litter", or CD, for Musical Tails with all songs written, performed, engineered and mixed by Nancy.

In March 2012, “Tortilla Flats” is released on Joe Tucker Records. Songs from California including the winner of the Santa Barbara Songwriting Contest, “It’s Awfully Nice in Paradise”.

October 2012 welcomes the release of “Dark Stars”,  songs from the 80’s and early 90’s produced by Terry Brown,  Lou Pomanti and Nancy Simmonds.