Okla. Stat. tit. 16, § 16-83: Matters to which affidavit may relate

The affidavit may relate to the following matters: Age, sex,

birth, death, relationship, family history, heirship, names, and

identity of parties, whether individual, corporate, partnership or

trust; identity of officers of corporations; membership of

partnerships, joint ventures and other unincorporated associations;

identity of trustees of trusts, and their respective terms of

services; history of the organization of corporations, partnerships,

joint ventures and trusts; marital status; possession; residence;

service in the Armed Forces; and conflicts and ambiguities in

descriptions of land in recorded instruments.