Jacinto "Jackson" Sylvar (d.1895, age 57) was an 1860s emigrant from the Azores who became close friends with F.A Hihn. He served on the board of directors for both City Bank and City Savings Bank during the years of Mr. Hihn’s directorship and was a leading stockholder at the time of his death. Sylvar also served as the Under Sheriff of Santa Cruz for many years, and ran the jail on Mission Hill. He built a saloon/residence on the west side of the mission plaza, at the corner of High Street. The street that was later built along that side of the plaza was named for him.
- Chase, John L., The Sidewalk Companion to Santa Cruz Architecture (4th ed. 2023), Chapter Four, item (26), page 96
- Santa Cruz County, Calif. Illustrations, with Historical Sketch (1879 book) has a drawing of the Sylvar place, on page f100 (in the 1997 edition), but no biography.