Just where do you get this stuff?
When every man is his own Pope and Chief Theologian, anything is possible. BTW, every Buddhist I know recognizes that he was born a man, taught as a man and died as a man, never a God and never a product of some bestial pagan myth. But what do I know?
There are dozens of sources which refer to the white elephant. Do a simple google and pick a couple.
https://www.google.com/search?q=how+was+buddha+conceived
Here is one source - http://www.kbi.com.au/cgi-bin/engine.pl?Page=page.html&Rec=38
The Buddha was conceived into the womb of his mother, Mayadevi (by taking the form of a White Elephant descending from Tushita and entering the womb immaculately).