I really dont know if we are related to Rodolfo Fierro. I find very few connections with those Fierro. However in my research (very sparse)I did find some interesting things with help from a cousin who lives in Bryan TX. Look up the "Plan de San Diego". We (those from Laredo) were more involved in that aspect of the revolution*. Several key items that recure in my family.
Railroad, Laredo, Donley(city), FlowerShop in laredo, Gilbert Fierros(famous musician). My grandfather worked for the railroad (lost an arm).
* actually we wanted to take over texas, arizona, newmexico and California, Kill all white, ally with blacks and oriental etc etc. Crazy huh!