My ancestor is Josiah, son of Josiah and Sarah, so I haven't documented any information about the Hicks brothers, but I can tell you what is said in the book History of Centre and Clinton Counties Pennsylvania by John Blair Linn. (1882)
"Thomas and Jacob Hicks are suppposed to have come from Maryland to Centre County as early as 1790, and located on Buffalo Run, in Patton Township, adjoining land now owned by S. P. Gray.Jacob Hicks married one of the daughters of Josiah Lambourne, himself one of the earliest settlers.The Hicks brothers moved to Indiana eventually, and there ended their days.Isaac Hicks did not come to Patton until just before the year 1800.He made his home on Muncey Mountain, and died there in 1845.Of Isaac Hicks' twelve children, seven are now living.They are Elizabeth Hardin, Abraham Hicks and John Hicks of Patton; Jacob Hicks, of Half-Moon; and three others living without the bounds of the county.Abraham Hicks, living near Scotia, bought his present farm of Moses Thompson in 1846."
Jacob Hicks and Thomas Hicks were listed as resident tax payers in Potter Township in 1791.On a Civil List, Thomas Hicks is listed as an assessor in 1799, Thomas Hicks and Josiah Lambourne were assessors in 1800, and Thomas Hicks was a constable in 1802.Jacob Hicks, Thomas Hicks, Josiah Lamborn (Blacksmith) and Josiah Lamborn are listed as residents of Half-Moon Township in January 1802. Thomas Hicks and Jacob Hicks are also listed as being 2 of many defendants in a land dispute in Half-Moon Township in 1803.Ephraim Lambourne was a tax payer of Half-Moon in 1819.Among early residents of Stormstown was listed Isaac Lambourne, a potter.Ephraim his brother joined him in 1836.Ephraim died in 1853.
The Lamborn book by Samuel Lamborn doesn't say much of anything about the Hicks brothers.