[1] Her mother was actress Maude Giroux, and her father was actor and playwright Frank Tannehill Jr.

[2] Myrtle Tannehill's appearances on Broadway were mostly in comedies, and included roles in the plays Just out of College (1905), Mrs. Wiggs of the Cabbage Patch (1906), Electricity (1910), Broadway Jones (1912-1913), Get-Rich-Quick Wallingford (1917),[3] Dear Brutus (1918-1919), The Bonehead (1920), The Broken Wing (1920-1921),[4] The Dream Maker (1921-1922), Dodsworth (1934), The Philadelphia Story (1939-1940), and Pygmalion (1945-1946).

[9] She also made two late-career appearances on television, in "Murder by Choice", for Colgate Theatre (1949), and in "Follow Me" for Lights Out (1951).

[10] Myrtle Tannehill married actor Hale Hamilton in 1912, a month after he divorced actress Jane Oaker.

Tannehill and Hamilton divorced in 1920, before he married his third wife, actress Grace La Rue.