Hi dropoffyourkeylee. I do think that the article at https://en.wikipedia.org/wiki/Sacred_Name_Movement makes some very questionable statements. For example, the quote of "The Sacred Name Movement (SNM) ... prompted by Joseph Franklin Rutherford, were concerned with the Hebrew name of God, a concern that led the Zion's Watch Tower Tract Society to the adoption of the name Jehovah's Witnesses, seems very problematic to me. Rutherford in regards to the name of the biblical God of the Hebrew Scriptures did not emphasize the name YHWH (Yahweh) in its Hebrew form, nor in the form which scholars say is most likely the most accurate form for the English language, namely Yahweh. Instead Rutherford emphasized the common English rendering of it (as used in the KJV and ASV Bibles) of "Jehovah". Furthermore, the main reason why the WT chose the name "Jehovah's witnesses" (later "Jehovah's Witnesses) was because Rutherford (and maybe the WT organization) wanted a Bible based name that would stop people from calling the religion by various other names, such as International Bible Students (which was simply the name of one the WT's corporations), Russellites, Millennial Dawners, etc. The latter names were demeaning. The name Bible Students was too general, at least for Rutherford since he wanted to distinguish his version of the religion from the other Bible Students groups (the ones which did not accept Rutherford's changes to the teachings of Russell).
I think Rutherford emphasized the name Jehovah, in order to aid his argument against the Trinity doctrine. It made it easier for him to present Jehovah and Jesus as two separate beings, whereas emphasizing the title of "Lord" would blur that distinction and make it harder to refute the Trinity doctrine. I notice that Rutherford's doctrinal book called The Harp of God: Proof Conclusive that Millions now Living will never Die, from the year 1921 (just a few years after Russell died), uses the name "Jehovah" extensively. It thus seems to me that the WT's strong emphasis on the name "Jehovah" began under Rutherford, by the year 1921 (and possibly by a bit earlier). The name "Jehovah" was also used in Russell's books but I am not aware of any of his books using the name anywhere near as extensively as Rutherford's book from 1921 uses the name.