When units were consolidated to form the 7th on February 13, 1864 he was transferred to Co. C, 7th Regiment, Georgia Cavalry.

Pvt. Williams was wounded in July 1864 when a shell exploded very near him, causing total deafness in one ear and partial deafness in the other. Later he contracted rheumatism and suffered from a rupture.

On January 10, 1965 he returned home on sick furlough because of chronic diarrhoea. Pvt. Z.T. Williams remained on sick furlough until the end of the war.