Can my great great grandfather Patricio Madera have kids in his 60's?

Can my great great grandfather have kids in his 60's?

I have found baptismos where my great great grandfather Patricio Madera and Dimas De La Paz had kids in the 1850's:

Julian Madera, who is the brother of my great grandfather Calixto Madera, born in 1859:
http://oi60.tinypic.com/x1leoj.jpg

Calistra Madera born in 1853:
http://tinypic.com/view.php?pic=taoglx&s=8#.U3avvNJdWO0

Listed as parents: Patrico Madera and Dimas De La Paz, Paternal Grandparents Juan Benancion Madera and Geronima Fernandez

Here is the baptism of my great great grandfather Patricio Madera in 1792:
http://tinypic.com/view.php?pic=34ezs0k&s=8#.U3av4tJdWO0

And his parents is Juan Benancio Madera and Maria Josefa

Here is the baptism of Juan Venancio Madera of Rancho De Los Maderas in 1762:
http://tinypic.com/view.php?pic=4joxmh&s=8#.U3awJNJdWO0

So I would have to think that for my great great grandfather Patricio to have kids in his 60's would mean the woman he had them with Dimas De La Paz may have been his second wife and a younger female or I have made an error in finding the correct Patricio Madera? But I connected Juan Benancio Madera as his father in the baptism records