M. et Mme. Murray sont allés à Paris.
No, there is no period after "mme" in French. However, "monsieur" ("M.") needs one.
Mme
Mme
Mme is the French abbreviation for "madame." It would translate as "Mrs."
mme.
Mme. Mademoiselle is Mlle.
The French word for "Mrs." is "madame" and it is usually abbreviated as "Mme". You can write Madame or Mme. ex. Mme. Moreau or Madame Moreau (typically the wife of Monsieur Moreau).
Marie Curie worked in Paris in 1898.
In French, "Mme" (pronounced "Madame") stands for "Mrs." It is used as a courtesy title for married or older women.
Madame Murphy, abbreviated: mme Murphy.
Monsieur/Madame/Mademoiselle
Mme is the abbreviated form of "madame", i.e. Mrs. Melle / Melles. ("mademoiselle/mesdemoiselles) is the translation of Miss/Misses Ms. has no French equivalent - French people tend to use Mme when the marital status is irrelevant to the purpose of the letter. In spoken French we use "madame" or "mademoiselle" depending of the context: an older person will be called "madame", whereas a younger one may be called "mademoiselle"