From court records of Francis Ditto (Franz Dido), it is said that Jacob was his twin brother.
From the History of the Dittos:
Jacob Ditto, born 25 September 1758, died in 1826.He is identified in the Orphan's Court Docket.A bit more is known about Jacob.He has been discussed earlier in this chapter.He married Catherine Finck (born circa 1760) circa 1783, probably in York County.He and his brother Francis were twins.He owned land for a time in northwest Baltimore County, Maryland.His wife Catherine was a Catholic, and he converted to Catholicism after he married her.Jacob and his family moved to Perry County, Ohio, before 1820.
From the 1883 History of Perry County, Ohio; Colburn/Graham; WH Beers & Co. Chicago, 1883; Reprinted 1977 by The Bookmark; PO Box 74, Knightstown, Indiana, 46148;
The following named persons were citizens and voters in Reading township, as early as 1816 or 1817:Jacob Dittoe, Peter Dittoe.....
The Trustees of Reading township met to give the Supervisors their orders for making the roads of said township: March 26th, 1808, Jacob Dittoe......
"Dr. Fenwick and Father Young were sent to Perry county by their superior, from the Convent of St Rose, in Kentucky, to take possessionof a small log church and farm, containing three hundred and twenty-nine acres, donated to Father Fenwick by Mr Jacob Dittoe, who, with the assistance of his two brothers, Messrs. Joseph and Anthony Dittoe, and his brother in law, Mr John Fink, of Somerset, had purchased by entrance in the land office held in Chillicothe, thishalf section for the express establishmentof a Church and Convent of the Dominican Order then established in Kentucky.
Church began May 26, 1825, completed on January 11, 1829.Rev. Father Young..."He passed a merited encomium on the departed patriarchs of religions, Messrs. Jacob Dittoe, Joseph and Anthony, his brothers, and the old patriarch of the Somerset congregation, Mr. John Fink, Sr., who was a liberal benefactor in the erection of Trinity Church, besides donating to Father Fenwick the beautiful site on which that splendid gothic church now stands, in connection with the cemetery.