Hi, Terry. You can access the manifest for Thingvalla from 19 April 1889 through Stephen Morse's website (www.stephenmorse.org), but only if you have an ancestry.com account. It requires a log-in in order to see the actual manifest (this is not true for Ellis Island). If you are looking for someone in particular, let me know and I can copy the page and send it to you offline. Regards, Anne Marie