The 1849 Russian Steam man entry is more a place marker in case further information comes to light that this steam man actually went through a walking motion, rather than a statue on some sort of steam carriage.
Scientific American. / Volume 5, Issue 14 1849 Page 108
A Steam Man.
A mechanic in Russia is said to have succeeded in making a steam man. It is probably, says an exchange, one of the most interesting inventions ever offered to the public. It is a colossal statue, the feet of which are placed upon wheels upon a railroad, and as he goes thundering, over the coarse, the steam comes puffing out of his nostrils in a manner to give the appearance of Satan as pictured in Revelation. Our own opinion regarding it is that there is nothing wonderful about it. There are hundreds of mechanics in our own land who could make steam men, if they received orders to do so and good pay for their labour: but of what utility would it be when executed.