lil,
Middle names can help with further links.
For instance, re the middle name 'Lochtie' from Fife which you apparently looked at.
John Lochtie BROWNE and
Thomas Lochtie BROWN are both great-nephews of 'my' Margaret (LOCHTIE) PHILP - sons of her niece (daughter of Margaret's brother John) Jane (Jeannie) LOCHTIE b 1828 who married George BROWN. When Jane died in 1914, she was recorded with the middle name of 'Harley' - the maiden surname of her Gran (the mother of 'my' Margaret and her brother John)!
And
William Lochtie WILSON was another great-nephew of Margaret - son of her brother's daughter Elizabeth (sister of the Jane who m BROWN) who married George WILSON.
Those middle names can be an enormous help

Though sometimes quite misleading

JAP