In an update to my message in the Cruz forum I stated that in searching the federal census, I found that in the 1910 copy the names recorded are listed different.
Cruz Cruz y Velazquez of 1920 (my grandmother) was listed Cruz delacruz y Velazquez in 1910. All my uncles and aunts last names were also listed as delacruz y Velazquez. The same thing occurs in my grand uncle Benito Donato y Cintron. I thank you for your time. JACK
PS: The story is that 2 Donato brothers and a Donato sister married 2 Cruz sisters and Cruz brother. This was before Ceiba became a city in itself. It was part of Fajardp, PR.