Donald E. Dillard

Director of Music

DONALD E. DILLARD was born in Philadelphia, Pennsylvania, and received his early music training at the Settlement Music School with concert pianist, Charles Engel. He was awarded a full scholarship to West Chester University, West Chester, PA, where he was a piano and voice major. His graduate studies were done at Westminster Choir College of Rider University, Princeton, NJ where he served as teaching assistant in the Theory Department.

Mr. Dillard is an active composer of over 150 works for orchestra, chorus, instruments, piano, organ and voice, including three fully scored cantatas and two oratorios for soloists, chorus and orchestra, as well as concertos for violin and orchestra, cello and orchestra, and organ and orchestra, three song cycles for solo voice and orchestra, three symphonic poems, and other orchestral works.

His music has been performed throughout the United States, South America, Japan, and in Europe. His piano solo works have been performed internationally by the late concert pianist Richard Fields. Orchestral works have been performed by the Detroit Symphony, Grand Rapids Symphony, Atlanta Symphony, Cincinnati Symphony, Delaware County Symphony and the Orchestra Society of Philadelphia.


Nathalie Tan

Office Manager

Nathalie has served as office manager at Covenant since August 2018.

She grew up in San Francisco but now lives in Palo Alto together with her husband and their two children.

Outside of her ministry to Covenant, she enjoys exploring new places, listening to music, connecting with old friends and spending quality time with her family.


Rev. I Sil Yoon

Parish Associate

I Sil was born and raised in a Presbyterian family in South Korea. She received her B.A. in Theology and English linguistics and literature from Yonsei University, South Korea, and came to America to continue her theological studies and pursue ministry.  She received her Master of Divinity from Duke University, North Carolina, and spent one year at the University of Edinburgh to pursue a Master of Theology in World Christianity. 

She currently works at Stanford Medical Center as a chaplain resident and is a doctoral student at the Graduate Theological Union in the department of Theology and Ethics.