After the passing of Grateful Dead lyricist John Perry Barlow, members of the band have begun to pen their own memorials for the poet and longtime activist.

Following Bob Weir’s tender ode to his childhood friend, drummers Bill Kreutzman and Mickey Hart took to social media to grieve as well.

See below for their statements regarding Barlow, who helped bring songs like “Mexicali Blues,” “Cassidy” and “Estimated Prophet” to life.

Bill Kreutzmann:

Rest easy friend. You are such a gift to the world. Have a blast up there with Captain Trips, until we all meet again.

Mickey Hart:

John Perry Barlow was a map maker extraordinaire. He paved the way for digital justice, wrote some cool songs with Bobby and lived one full life filled with as much fun as you can squeeze into 70 years. He was a fancier of anything that made for a better world. Bon voyage John.