Brennan family, from Multyfarnham, Westmeath

Hi everyone! hope all of you are good

After looking for about my great gradnmother Elisa Brennan, I have finally found the death record of her, here in Buenos Aires, were it says who were her parents, so, now Im trying to reach out of family that still living in the area, of any information that anyone can give me
the family, as far as I found, are these

Timothy Brennan ( father)
Ann Parker (mother).....married at Rathowen,Westmeath 18feb1847

they are the parents of:
-Jane Brennan born 1848 
-Thomas Brennan born 1849
-Patrick Brennan born 1851
-Elisa Brennan born  1854 , - my great grandmother
-John Brennan born  1855 ( he came with Elisa to Argentina)
-James Brennan born  1857
-Timothy Brennan born 1859
-Anne Brennan born 1861
-Terence Brennan born 1864
-Daniel Brennan born 1866
-Michael Brennan born 1868

all the baptism records I´ve found ,are from Multyfarnham, Westmeath

I also have the census record of Anne and her daughter Anne, in the 1901 census..and her death record

What I need to know, if there any family still in the area? or how can I found any informatin, besides the birht, marriages, death records or census.. ?

Thank you to all in advance

Diana