My Erdös Number

From my best calculation, my Erdös number is 3. The path is:

3. Jeff Gray
2. Alan Sprague
1. Renu Laskar
0. Paul Erdos

Path Edge	Publication
Erdös -> Laskar	Erdös, Paul; Laskar, Renu On maximum chordal subgraph. Proceedings of the fourteenth Southeastern conference on combinatorics, graph theory and computing (Boca Raton, Fla., 1983). Congr. Numer. 39 (1983), 367--373.
Laskar -> Sprague	Laskar, Renu; Sprague, Alan P. A characterization of partial geometric lattices of rank $4$. Enumeration and design (Waterloo, Ont., 1982), 215--224, Academic Press, Toronto, ON, 1984.
Sprague -> Gray	Liu, Danyu; Sprague, Alan; Gray, Jeff, PolyCluster: An Interactive Visualization Approach to Construct Classification Rules, International Conference on Machine Learning and Applications (ICMLA), Louisville, KY, December 2004, pp. 280-287.

Here is a 4-path:

Here is a 5-path:

5. Jeff Gray
4. Murali Sitaraman
3. Bruce Weide
2. Michael Fredman
1. Daniel J. Kleitman
0. Paul Erdös

An even older path had me at 6:

6. Jeff Gray
5. Murali Sitaraman
4. Gary Leavens
3. Kim Bruce
2. Albert Meyer
1. Daniel J. Kleitman
0. Paul Erdös

See the Erdös project database for an explanation of this.