Gillies Undertaking Company was first established in Sumas by George and John C. Gillies in connection with their lumber, hardware and furniture store. In the 1920's they built a new building and the business continued under the same name.
- 1938 – A mortuary operated by Reuben Axlund at 202 Front Street in Lynden was purchased by the Gillies family and Les Gillies became the owner/manager at this location.
- 1946 – The Gillies family purchased a funeral business owned by F.E. Knapp and son, Brad Knapp, at 319 W. Front Street in Lynden, which was combined into one location at 202 Front Street in Lynden.
- 1958-1959 – Fred Veroske owned and operated both Gillies Funeral Home locations – Sumas and Lynden.
- 1967 – Dale King became owner operator of Gillies Funeral Home and sold the funeral home building in Sumas.
- May 1, 1975 – Don Smith purchased Gillies Funeral home with Robert L. Moles and Robert M. Moles. Don managed the Gillies Funeral Home while the Moles family operated their other county funeral homes. In March 1979, Don purchased the Moles' interest in Gillies Funeral Home.
- May 1, 2014 – Mylon and Shannon Smith purchased Don Smith's shares of Gillies Funeral Home to partner with Marlene Smith in owning Gillies Funeral Home.
Gillies Funeral Home has assisted more than 5100 families since 1975, always providing compassionate and professional care during their time of loss; offering traditional, memorial, graveside and cremation services. In the 1990's, Gillies Funeral Home became the first in the area to support families after the services through their Continuing Care Program. Their website provides on-line grief resources and also enables people to make known the preferences for arrangements, easing the burden on their families.
The funeral home staff currently includes Mylon Smith, owner/licensed funeral director; Dennis Lytle, licensed funeral director/embalmer, Cindy Alsum, family service advisor, memorial consultant and administrative assistant; Kathy Knutzen, bereavement Care, Jim DeGroot, support services; Phyllis Roosendaal, support services; and Beck Merris, accountant.