Giacinto was born on 19 MAY 1850 in Fagnano Alto, L'Aquila, Italy, the son of Giovanni Vallonio and Antonina Como.
His wife was Domenica Antonina Massaro, who he married on 11 DEC 1884 in Fagnano Alto, L'Aquila, Italy. Their two known children were Giovanna (1887-?) and Onorina (1892-?).
| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | 19 MAY 1850 |
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