0000920371-99-000048 4 1 19991031 19991101 SIMPSON MANUFACTURING CO INC /CA/ 0000920371 3420 943196943 DE 1231 4 34 001-13429 99738422 4637 CHABOT DR STE 200 PLEASANTON CA 94588 5106099912 4637 CHABOT DR STE 200 PLEASANTON CA 94588 SIMPSON BARCLAY 0001025790 DIRECTOR CA 4 4637 CHABOT DRIVE SUITE 200 PLEASANTON CA 94588 4637 CHABOT DRIVE SUITE 200 PLEASANTON CA 94588 4 1 000092037199000048-001-seq1-4.txt FORM 4 - OCTOBER 1999