Here is a list of ancient waka that are extracted from the Fletcher Index. If you want more information about any name that you find in this list, go to the link at the bottom of the page and search there. They have all of the references that they found for each name, which you can look up.
If you know who you are looking for the easiest way to find a name you are looking for is to use the CTRL+F and a search box will pop up. Type a name into the box then you can highlight all of the words that match and use the arrows to go up and down.
There are 4 names in this directory beginning with the letter H.
Source: http://www.waikato.ac.nz/library/maori-names-index/
