E. & G. G. Hook
Opus 223, 1857

The Washington Union- October 28, 1858 pg. 3
NEW ORGAN- Last evening the new and beautiful organ at the Unitarian church was exhibited to quite a large assemblage, composed of members of the congregation and others interested in music. It is from the factory of Messers E. & G. G. Hook, of Boston, and is a powerful and sweet-toned instrument. It has twenty stops, viz: Tremulant, hautboy, principal, stopped diapason, celestina bass, and stopped diapason bass in the swell, with open diapason, stopped diapason treble, stopped diapason bass, principal, flute, fifteenth and Viol d'Amour in the great organ, and sub-bass, with the couplers swell to great, swell to pedals and great to pedals, and bellow signal. There are two manuals and two octaves of pedals. The case is dark, in imitation of black walnut, with three rows of handsome gilt pipes in front, and arched in the centre at the top. The size of the organ is 15 feet high, 10 feet wide, and 7 feet deep. .... (more about the performers and musical selections. )

Identified from company publications as edited and expanded in The Hook Opus List 1829-1935, ed. William T. Van Pelt (Organ Historical Society, 1991).