its old news that Adass chassidic will not write even the first initial of a lady. My wife would be known as ‘mrs I Balbin’ this is certainly a hall mark of Hungarian chassidic practice as well as some Russian/Polish chassidic.
contrast this to the wedding invitation that R Chaim Brisker used for his son Mishe’s wedding (Moshe Soloveitchik was the father of the Rav. He had signed it as ‘Chaim and Lifshe Soloveitchij’. No appellations and her name was ‘out in the wild’, heaven forfend.