[1] She studied further with Alice Groff in Philadelphia,[3] and in Berlin with Lilli Lehmann, Mathilde Mallinger and Franz Emmerich.

In 1913 she shared the male role of Alan-a-Dale with actress Louise Le Baron in the comic opera Robin Hood by Reginald De Koven and Harry B. Smith.

She wrote the music and lyrics for the opera Rosalind, based on the story of Shakespeare's As You Like It which premiered at the open air Rockridge Theater in Carmel, New York, in August 1938.

[6][7] Wickham wrote a second opera, The Legend of Hex Mountain, in 1957[8] based on the Amish of Pennsylvania.

In 1954, three of her ballets were presented at the Chautauqua Institute in New York, Indian Summer, an early American fantasy; Musicians of Murano about a carnival in an Italian town; and Gift of Laughter, an Irish fairy tale.