deeper - 5:54 pm on Jul 1, 2013 (gmt 0)
I have a big list with all entries in all directories I have ever made. I recorded every detail, anchor, category... you know... german thoroughness.
Without such a list you have already done what you can do IMHO. Have you searched for unique sentences or anchors?
I guess your listings have been removed or the whole directory is "gone". I checked my entries after 3 years and about 50% of them were gone, in almost all cases the webmaster closed his directory. Sometimes the content has completely changed, but usually I saw "domain for sale".
The weaker and smaller the directories are, the more probably they disappear within few years. Panda and penguin speeded this process up... they get no traffic any more from Google... so close it.