Quartoceimanism also dates from the Russell era, plus rejection of the Trinity and support for Arian-like Christology. The complete rejection of “social gospel” in the Russell era also remains in the DNA of JW culture.
Who came up with the JW reading of Gen 3:15? Was that Russell or later?
Russell held that salvation remains open to almost everyone who has ever lived, including Adam. For this, some of his contemporaries accused him of the heresy of “universalism”, which he denied. Personally I think Russell was closer to the mark than current JW teaching. Jehovah will save everyone in the end. Isn’t this what 2 Pet 3.9 says?