'persons whom' is correct and can be used in written English.
Example: We met several persons whom we had never seen before.
* Accountant," in this context, refers to persons whom I do not know personally, who do not have access to my social security number or other personal info, persons with whom my family does business, or whom I may contact in the near future to do my taxes assuming the extension I filed using Form 4868 was filled in correctly.
Will you please name the persons whom you criticized?
But she also noted that Wells was "a useful missionary for whole crowds of persons whom we could never get at".
In passing, one of the persons whom the correspondent interviewed announced that "the Young Turks" of the underworld were trying to take over.
In some countries there are grades of courts-martial with varying competence as regards persons whom they may try or punishment they may impose.
The basic motive for the belief in and veneration of saints is, primarily, the recognition by people of religious persons whom they view as holy.
Gray was one of the few persons whom Darwin kept fully informed concerning the publication of his Origin of Species (1859).
Bugaku masks sometimes have movable parts and have attenuated features intended to convey the characters of the fictional persons whom they represent.
The prisoner was in the custody of different officials, men shown by the record to be persons whom he had no reason to fear.
Police officers may have a similar power with respect to persons whom they reasonably believe to be material witnesses to a specific crime.
Tells of the Riding Club and the notable persons whom he has known in the forty-three years of his career.
