Wow, I'm sure there is a connection--I just don't know what it is. I haven't researched the Loukoo line much. All I know is that Helvi Sophia Loukoo (1864-1920) married Kustaa Rajala (1858-1931), and her father was Isaac Loukoo. I don't show a Lida Rajala in my line. Kustaa Rajala changed his last name from Falt to Rajala when he moved his family to a different farm.
Sorry I can't help more. Good luck.