http://www.yatesandmore.com/Peake/d404.htmThis may help assist with your question on migration of Maryland colonists to Kentucky and also Ohio. My Ancestors, Hardesty's, were a part of this migration.
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Resentment of the dictatorial powers of the Lords Baltimore and attempts to transfer power to the legislative body had been evident since the first years of the Maryland colony. These took a serious turn when the Protestant William of Orange and Queen Mary ascended to the throne of England in 1688. Using allegiance to the new monarchs and complaints about Catholic dominance in the Maryland government and political appointments as a pretext, Protestant leaders John Coode, Kenelm Cheseldyne, and Nehemiah Blackston organized a revolt and gathered an army from St. Mary's and surrounding counties to take over the government at St. Mary's City. They formed a new government comprised of Protestants only and removed Catholics from all official positions in the colony. Their government was supported from England, and a new governor reporting directly to the crown was sent to Maryland in 1692. The rule of Lord Baltimore was thus ended along with the policy of religious freedom.
In the meantime, the Revolutionary War brought great hardships and even greater changes to St. Mary's County, Maryland. British warships roamed the Chesapeake and tributary rivers at will, impounding supplies and in many instances looting and sometimes destroying homes, churches and warehouses. A large percentage of the eligible men fought in the war, either marching with the Continental Army or guarding the home front in local militias. The regular army regiments from St. Mary's County fought engagements from New York to South Carolina and were present at the British surrender at Yorktown.
The pursuit and successful conclusion of the war brought both detrimental and beneficial effects to St. Mary's Countians. On the one hand, the great demand on supplies, manpower and money created by the war, combined with the curtailment of trade with Britain, led to a profound decline in the economy in the years immediately following the war. Counterbalancing this was the fact that the vast expanse of land west of the Appalachians that was gained by Britain’s victory in the French and Indian war but closed to settlement by the colonial government now became available to citizens brave enough to relocate there. Some of the land was given out in grants to Revolutionary War veterans in payment for their services, and more was available for purchase at low cost. These circumstances resulted in a massive movement of people to the western lands, particularly Kentucky, in the decades following the war. Kentucky was populated largely by settlers from Virginia, Maryland, and Pennsylvania. As an example of the extent of the post-war migration, the population of St. Mary's County decreased from 15,444 to 12,794 between the years 1790 and 1810. Many of these followed earlier St. Mary's County pioneers to Kentucky, especially to Nelson and Washington (then including Marion) counties.