Brigham teaches Elohim, Jehovah, and Michael are Father, Son, and Grandson, respectively and that, after the earth was made, Michael became Adam.

Date: Jun 17, 1871
Type: Personal Journal / Diary
Source: Brigham Young
LDS
Hearsay: Scribed Summary
Reference: Joseph F. Smith, Journal, June 17, 1871, Joseph F. Smith papers, 1854-1918, MS 1325, Church History Library
Scribe/Publisher: Joseph F. Smith
People: Brigham Young, Joseph F. Smith, Michael, Adam
Audience: N/A
Transcription: Prest. Young followed. Said Eloheim, Yahova + Michael were father, son and grandson. They made this Earth + michael became Adam.
Source Link: https://catalog.churchofjesuschrist.org/assets/0321e041-b256-4107-bddd-dff3ae65b3b1/0/100
Citations in Mormonr Qnas: Adam-God Theory