Time and space are large concepts. You are not capable of having anything but narrow thoguhts. Does the Times state when they were neighbors? No. It only indicates they had been neighbors. And that you have not even come close to disproving - or will you ever.
...says he who insists that Merryman and Taney were friends since their distant relatives are buried in the same cemetary.
Does the Times state when they were neighbors? No.
Nor would it matter if they did as John Merryman grew up in Cockeysville, lived in Cockeysville to adulthood, inherited his home in Cockeysville during the 1840's, appeared in Cockeysville in the 1850 census, appeared in Cockeysville in the 1860 census, and was arrested in the middle of the night in Cockeysville in 1861. Since we know for a fact that Roger B. Taney never lived anywhere near Cockeysville, he physically could not have been a neighbor of Merryman.
Taney was born in Frederick, Maryland. He lived in Frederick until 1823. From 1823-1855 he had residences in Washington and downtown Baltimore. From 1855 to his death in 1864 he lived in Washington and, when in Baltimore, stayed at the home of his daughter located on Franklin street downtown. NONE of Taney's well documented residences is within even 20 miles driving distance from Merryman's home from his birth in 1824 to his arrest in 1861, thus it is physically impossible for the two to have been neighbors.