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There are a lot of Reyes born in Gibraltar showing up on familysearch around the 1900's, may be connected though I can't see a Bartolome among them.
One branch of the family emigrated to the USA.

Notes: Spanish people use TWO surnames, the Fathers first and the Mothers second i.e. Mario Fernandez Gonzalez. Women do not change their names on marriage, they keep their original titles though they may add "de Gonzalez" meaning Of Gonzalez as a tribute to their spouse.

the addition of "ita" to a name is the diminutive version Concha is a name. Conchita is either a pet name or literally Little Concha.

Macias is a common name (especially in Catalunya) Marcias is probably a trancribers error. Reyes is a common name in all Latin countries.

Gibraltar has a majority Spanish origin population and Spanish is the main spoken tongue.

The demographics of Gibraltar reflect the many European and other economic migrants who came to the Rock over three hundred years, after almost all of the Spanish population left in 1704.

The main ethnic groups, according to the origin of names in the electoral roll, are Britons (27%), Spanish (24%, mostly Andalusians but also some 2% of Minorcans), Genoese and other Italians (20%), Portuguese (10%), Maltese (8%), and Jews (3%). There are also small (less than 1%) peoples of other groups such as Moroccans, French, Austrians, Chinese, Japanese, Polish and Danish.[53]

The Gibraltar Census 2001[54] recorded the breakdown of nationalities in Gibraltar as being 83.22% Gibraltarian, 9.56% "Other British", 3.50% Moroccan, 1.19% Spanish and 1.00% "Other EU".

The official language of Gibraltar is English, and is used by the Government and in schools. Most locals are bilingual, also speaking Spanish, due to Gibraltar's proximity to Spain.
Gibraltarians often converse in Llanito (pronounced: [?a'nito]),[55] a vernacular unique to Gibraltar. It is based on Andalusian Spanish with a strong admixture of British English and some contribution from languages such as Maltese, Portuguese, Italian of the Genoese variety and Haketia (Ladino)

(from the wiki)

I don't think that Gibraltar follows the Spanish way of using both father and mother's first surnames.