Francisco & Ventura Guntalilib side

Francisco (+) & Ventura (+) are brothers & i want to know what is their relationship with Juan Balassu Guntalilib (+). My initial info is that they are 1st degree cousins & i don't have a proof if their fathers are brothers.

In my recollection, the siblings of Francisco are the ffg:

1. Andoy Guntalilib (Just known for his alyas) - A retired marine
2. Mario Guntalilib - Just died last last Feb 13, 2015
3. Julieta Guntalilib - Wilson

Siblings of Ventura are the ffg:

1. Domingo Guntalilib (+) married to Minda (+)
2. Flordeliza Guntalilib Married to Rodrigo Tambalque (+).
3. Genaro Guntalilib (+) married to Lydia (+)>
4. Lando Guntalilib who settled in Baliwag w/ his family - Not sure if he is still alive
5. Emma Guntalilib married to Luis Las Pinas (+)
6. Elindrado Guntalilib - single
7. Pepito Guntalilib, a ret marine & now settled in Zamboaga w/ his Family