1 EXHIBIT 8 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ Robert E. Boardman ------------------------- Robert E. Boardman 2 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ David R. Coates ------------------------- David R. Coates 3 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ Benjamin F. Edwards III ---------------------------- Benjamin F. Edwards III 4 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ Earle H. Harbison, Jr. --------------------------- Earle H. Harbison, Jr. 5 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ Roger B. Porter --------------------------- Roger B. Porter 6 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ E. Miles Prentice III -------------------------- E. Miles Prentice III 7 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ Thomas P. Salmon -------------------------- Thomas P. Salmon 8 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, his attorney-in-fact to execute in his name, and on his behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ A. Gary Shilling -------------------------- A. Gary Shilling 9 National Life Insurance Company Power of Attorney The undersigned hereby appoints Patrick E. Welch, Thomas H. MacLeay or Rodney A. Buck, or any of them, her attorney-in-fact to execute in her name, and on her behalf, the Sentinel Benefit Provider flexible premium variable universal life registration statement on Form S-6, and all amendments thereto, to be filed by National Life Insurance Company under the Securities Act of 1933. /s/ Patricia K. Woolf --------------------------- Patricia K. Woolf