how do you write senora garcia in english. Is it Mrs. Garcia?

Yes.

It's the Spanish I question here! If it requires an accent mark, it is considered incorrect without. If it should be capitalized, it is considered incorrect in lower-case!

Señora García

Sra

To write "Señora García" in English, the most common translation is "Mrs. García." However, it is important to note that the exact translation can depend on cultural and personal preferences. In Spanish-speaking countries, "Señora" is a courtesy title used to address a married woman, commonly translated as "Mrs." in English. "García" is the surname or last name. When translating names, it's generally preferred to keep the original spelling, unless the individual specifically requests otherwise.